In the spring of 1884, a coal loader named Isaac Dunn was working the face of a new drift mine on the West Virginia side of the Pocahontas coal field when his pick struck something in the coal that was not coal. It rang. Coal does not ring. A pick driven into a good seam of Pocahontas coal makes a dull, solid bite, and the coal breaks away in black glittering blocks.

This was the sound of steel on steel. Dunn struck again, a little to the left, and it rang again. He scraped the coal away with his hands, and under his lamp, set solid into the seam, was a flat, dark face of iron. It took his crew three days to dig it out of the coal around it.

What they uncovered was a block of iron roughly the shape of a blacksmith’s anvil, a little over five feet long, standing nearly as high as a man’s chest, with a broad flat working face on top and a thick tapering horn at one end. The coal around it was not packed against it. The coal had formed around it. The seam ran above it and below it and on every side, undisturbed, layer on layer, the way the rings of a tree grow around a nail driven into it long ago.

And the face of that anvil was pitted, covered from end to end in shallow overlapping craters, each one the size of a dinner plate, each one the mark of a single blow from a hammer. Not a blacksmith’s hand hammer, not a sledge. A hammer with a striking face eight inches across, swung down onto iron so hard that the iron had dished beneath it again and again for longer than anyone could imagine. The company’s own blacksmith looked at that anvil, at the height of its face and the spread of its blows, and did the sum every blacksmith knows by heart.

The answer he came to was that whoever had stood at that anvil and worked it had been about twelve feet tall. The Pocahontas coal is three hundred million years old. The anvil was inside it. What happened next followed a pattern that anyone who has watched these stories will recognize: a company that wanted the find to be nothing, a heading sealed, witnesses who paid for what they saw.

But it also followed a pattern of its own, one that has never quite stopped, because the men who dug that anvil out of the coal made one mistake early on that they could not take back. They struck it. And something somewhere inside that mountain struck back. Long before the coal companies came to those ridges, long before the railroad and the company towns, there were people in Virginia who had their own accounts of who had worked the mountains before them.

The Monacan people, whose country once ran from the falls of the James River west into the Blue Ridge, kept those accounts. And one old Monacan man, years later, gave a version of them to a schoolteacher who wrote it down. He told her who had stood at the anvil, and he told her what would happen when the mountains were finally taken off the coal. What he said is the last thing in this story.

For most of the nineteenth century, the country along the border of Virginia and West Virginia, where the Bluestone River and Elkhorn Creek cut down through the ridges, was about as remote as any place in the eastern United States: steep, narrow hollows, thick forest, a few farms on the ridgetops and creek bottoms, a few log cabins, and no road a wagon could use for most of the year. Underneath it was a fortune. Geologists and promoters had known for years that there was coal in those mountains. A former Confederate mapmaker named Jedediah Hotchkiss spent much of the 1870s writing and lecturing about the mineral wealth of southwestern Virginia, especially one seam that outcropped along the hillsides near the head of the Bluestone.

It was enormous, in places more than ten feet thick, and it was a coal of unusual quality. It burned hot and clean and almost without smoke. In the early 1880s, the Norfolk and Western Railroad, under its president Frederick Kimball, drove a line west through the mountains to reach it. In 1883, the first carloads of coal rolled out of a new mining town named for the seam itself, Pocahontas.

Within a few years, Pocahontas coal was famous. Steamship lines wanted it. Railroads wanted it. In time, the United States Navy would come to prefer it above almost every other coal on earth, because a warship burning Pocahontas coal left almost no smoke on the horizon for an enemy to see.

Mines opened up and down the hollows on both sides of the state line. Company towns sprang up around them with company houses, company stores, and company script in place of money. In a narrow valley on the West Virginia side, the coal operators built a little town called Bramwell with stone mansions and a bank that for a while was said to have more millionaires for its size than anywhere else in the country. The men who actually dug the coal were not millionaires.

They came from the farms of the surrounding mountains, from Wales and England and Hungary and Italy, and in very large numbers from the old tobacco counties of Virginia and North Carolina: Black men looking for wages that were real money in a country where a man who could load coal was paid by the ton, not by the color of his skin. Or so the recruiters promised. The work was brutal. Coal was undercut by hand with a pick, lying on your side in the dark, then blasted loose with powder, then shoveled into cars by men called loaders, who were paid for every ton they filled.

And it was deadly. In March of 1884, only a year after the first coal left Pocahontas, the Laurel Mine in the town itself exploded and more than one hundred men were killed underground. That is the real price of the Pocahontas coal field, and it belongs at the front of any story told about it. A few weeks after that explosion, across the state line on the West Virginia side, a small Baltimore outfit called the Bluestone Coal and Coke Company was driving a new drift into a hillside above Simmons Creek, following the great seam back into the mountain from the place where it showed at the surface.

A drift mine is the simplest kind of coal mine: you find the seam where it outcrops on a hillside and dig straight in along it, level with the coal over your head and under your feet and on either side for as far as it goes. The mine foreman was a Welshman named Evan Llewellyn. He was fifty years old and had worked coal since he was nine, first in the valleys of South Wales and then in the anthracite fields of Pennsylvania. He was the kind of foreman who wrote everything down: tonnage, powder, timber, roof falls, every name on every shift.

His mine book for 1884 survives. So does a great deal else about that spring, much of it in the hands of a church in McDowell County, which has kept for more than a century the account of a man named Isaac Dunn. Dunn was twenty-six. He had been born in Prince William County, Virginia, to parents who had been enslaved, and he had come west to the coal field the year before with his younger brother, both of them looking for work that paid in money.

He was, by Llewellyn’s own entry in the mine book, the best loader on the crew. He could fill more cars in a shift than any man in the drift, and he was steady, careful, and quiet. In later years he became a deacon in his church. Late in his life, at the urging of his pastor, he told his story of the anvil from beginning to end.

The pastor wrote it down. The church has kept it ever since. On the morning of the 22nd of April, 1884, Dunn was working the face of the Bluestone drift a little over three hundred feet back into the hill, clearing coal that had been shot down the night before and loading it into a car. The seam there was a little over nine feet thick.

About halfway up the face, at the height of his chest, his pick went into the coal and rang. Isaac Dunn’s account of that morning, as his pastor wrote it down, is plain and careful, the way a man tells a thing he has told himself many times. He said the pick rang, and he stopped because he thought he had hit a drill steel left in the face by the night shift, and a man could lose an eye that way. He struck again, a little to one side, carefully.

It rang again. He put down the pick and cleared the coal away with his hands, and under the light of the lamp on his cap he saw a flat, dark surface of metal, smooth in some places and pitted in others, set into the face of the coal as tight as a stone in a ring. He called the foreman. Evan Llewellyn’s mine book for that day reads: “Iron in the face at 312 ft, not ours, coal tight round it, stopped loading.

” Then underneath, in a smaller hand: “The seam is not broke over it. ” That last line was the one that mattered most to Llewellyn, and he came back to it again and again in the days that followed. He had spent forty years reading coal. He knew what it looked like when something had been pushed into a seam from outside: a fallen tool, a buried timber, an old working from some forgotten mine.

The coal around it would be broken, crushed, disturbed, cracked. It would show the wound. This coal showed no wound. The layers of the seam ran right up to the iron and stopped against it, clean, and picked up again on the other side.

Above it, the bands of the seam bent very slightly upward, as if they had settled down over it and draped it like snow over a fence post. The iron had not been put into the coal. The coal had grown around the iron. It took the crew three days to free it.

They worked carefully with picks and wedges, cutting the coal away from all sides, and on the third day it stood clear in a cave of its own at the face of the drift. Llewellyn measured it: a little over five feet long, nearly two feet wide across its face. The flat top of it stood five feet two inches above the floor of the drift. At one end it tapered into a heavy rounded horn, exactly like the horn of a blacksmith’s anvil, but twice the size of any horn he had ever seen.

On the side of it, near the base, there was a square hole of the kind a smith uses to hold the stems of his cutting tools. It was an anvil. There was nothing else it could be, and it was enormous. But it was the face that kept every man in that drift standing around it with their lamps raised long after the work was done.

The flat top of the anvil was covered in craters, shallow rounded hollows overlapping one another so thickly that there was hardly a flat place left anywhere on the working surface. Each crater was the size of a dinner plate. Each was the mark of a single blow struck straight down onto the iron by a hammer with a round flat face eight inches across. And there were thousands of them, layer on layer, the newer ones cutting across the older ones like the rings left on a table by a glass set down ten thousand times.

Isaac Dunn put his own hand flat inside one of the craters. It fit with room to spare. He told his pastor many years later that it was the moment he first felt afraid. Not of the iron.

Of the arm. In the cold dust on the floor around the base of the anvil, as they cleared it, the crew found something else: small curved dark flakes like fish scales, scattered thickly in the coal around the anvil’s foot. Llewellyn did not know what they were, but the company blacksmith did the moment he saw them. They were forge scale, the thin skin of oxide that flakes off red-hot iron when a smith hammers it, falling in a ring around the anvil and building up on the floor of every smithy in the world.

Whoever had worked at that anvil had worked hot iron on it, a great deal of hot iron, for a very long time. Llewellyn wrote to the company office in Baltimore that evening. And while he waited for an answer, he did the thing that every man in that drift would later wish he had not done, and that Isaac Dunn to the end of his life said he had begged him not to do. He wanted to know if the anvil was sound, so he picked up a sledge and struck it.

Isaac Dunn had a reason for begging him not to, and it came from his grandmother. She had been born in Africa, or so the family always said, and had been carried to Virginia as a girl, and she had lived long enough to hold Isaac on her knee. She had told him a great many things, most of which he had forgotten, but one he never forgot, because she had made him repeat it back to her until he had it by heart. If you are ever in a deep place, she said, and you hear knocking in the ground, you be still.

You do not knock back. Knocking back is how they know where you are. Dunn told Llewellyn this, standing by the anvil with the sledge already in the foreman’s hands. Llewellyn, who had grown up among Welsh miners with plenty of stories of their own about knocking in the dark, laughed, not unkindly, and told him he would knock once, to hear whether the iron was cracked.

Then he swung the sledge and brought it down on the face of the anvil. The anvil rang: a deep, round, clear note, much deeper than any anvil any man there had ever heard, and it went on and on, filling the drift, filling the hill, it seemed, before it finally died away. Llewellyn nodded, satisfied, and set down the sledge. And then, from somewhere far back inside the mountain, there came three blows, measured, evenly spaced, a heavy hammer on iron.

Very faint, very far away, as if from the bottom of a well. Then silence. Every man in the drift heard it. Llewellyn’s mine book records it in one line: “Struck the iron once.

Answered three times from inside the hill. ” Then the words that every one of them must have been thinking: “No other workings on this hill. ” There were no other mines on that hill. The Bluestone drift was the only opening into it.

Behind the face where the anvil stood, there was nothing but coal and rock as far as anyone had ever been. The company sent its engineer from Baltimore. His name was Charles Wickham. He was thirty-one years old, and he arrived at the drift on the 28th of April with a surveyor’s level, a measuring rod, and the open skepticism of a man who has been sent four hundred miles to look at an iron block.

He listened to Llewellyn’s story of the three blows with a polite face, and then he did exactly what Llewellyn had done. He picked up a hand hammer and struck the anvil twice to test the iron. It answered him. Three blows as before, but louder this time, closer, and every man in the drift felt them as much as heard them: a dull push of sound through the coal.

Then a pause long enough that Wickham opened his mouth to speak. And then one more blow, single, heavy, final. Wickham wrote to Baltimore that night, and his letter survives in the company’s surviving papers in his careful engineer’s hand. He wrote that he could not explain the sound and would not try.

And he wrote that the single blow at the end had sounded to him exactly like the stroke a smith gives the anvil when he has stopped to listen, to tell his striker to wait. Before the letter was finished, Wickham had sent for the company’s blacksmith. His name was Henry Toiver. He had been born in the mountains of Tazewell County, a few ridges to the east, and he had been shoeing horses and sharpening picks since he was a boy.

He was not an educated man, Wickham wrote, but he knew iron better than any man in the coal field, and he knew anvils the way a doctor knows the human body. Wickham asked him to look at the anvil and tell him everything it could tell. Toiver spent most of a day with it. He looked at the scale on the floor and said it was forge scale, and more of it than he had ever seen around one anvil.

He looked at the hardy hole in its side, the square socket for holding cutting tools, measured it with his fingers, and said that the stems of the tools that had gone into it would have been as thick as a man’s wrist. He looked at the craters, measured them, and said that the hammer that made them had a face eight inches across, and that to dish iron like that, blow after blow, the hammer would have to weigh, by his reckoning, somewhere close to two hundred pounds. A sledge in the hands of a strong man weighs twenty. And then he told Wickham something that every blacksmith learns in his first year at the forge.

An anvil is set to fit the smith. You stand beside it with your arms hanging loose at your sides, and the face of the anvil should come to the knuckles of your hand. Any lower and you stoop. Any higher and you cannot put your weight into the blow.

Every working anvil in the world is set that way, to the knuckle height of the man who uses it. The face of the anvil in the Bluestone drift stood five feet two inches above the floor. Toiver stood beside it, let his arms hang, and showed Wickham where his own knuckles fell: barely halfway up the side of the iron. Then he did the sum.

For a man of ordinary height, the knuckles hang at a little under half his height. Whoever had set that anvil at five feet two to the height of his own knuckles, and worked it with a two-hundred-pound hammer, had stood somewhere around twelve feet tall. Wickham wrote the number in his letter. Then under it he wrote: “I report this as the blacksmith gave it to me.

I have checked his arithmetic. I cannot find the error. ”

Henry Toiver did not leave it there. He was a smith, and there is one thing every smith does when he meets a new anvil, the way a musician touches the keys of a strange piano: he rings it.

Smiths do not only strike the work. Between blows, as they lift the hammer, they let it bounce lightly on the bare face of the anvil once or twice. Tink, tink. Keeping the rhythm going, keeping the arm loose.

Every smith has his own rhythm. Some say you can tell a smith in the next valley by the music of his anvil, the way you can tell a man by his walk. Toiver picked up his own hand hammer out of pure habit, and before Wickham or Llewellyn could say a word, he rang the anvil in his own rhythm: a heavy blow, two light ones. A heavy blow, two light ones.

Three times through. And from inside the mountain, his rhythm came back to him. A heavy blow, two light ones, three times through, exactly as he had played it. Not an echo.

Echoes come back at once and fainter. This came after a pause, as long as a man takes to think, and it was not fainter. It was louder than before. And as it sounded, a thin trickle of coal dust slid down from the roof of the drift above the anvil and fell across Toiver’s shoulders.

Toiver set down his hammer very carefully, Llewellyn wrote, as if it had become hot, and walked out of the drift without a word, and did not come back into it for two days. Wickham should have stopped there. Every man in that drift said afterward that he should have stopped there. But he had been sent by the company to report whether the anvil could be got out, and an engineer does not report on a thing he has not tested.

On the 1st of May, he had two of the strongest men on the crew stand on either side of the anvil with sledges and strike it together, hard and fast, a dozen blows, so that he could listen to the ring for any crack in the iron. The answer did not come from inside the mountain this time. It came from underneath them. Llewellyn’s entry for that day is written in a hand that is barely legible: “Struck 12.

It answered under our feet. Floor heaved. Men thrown down. Floor of the drift split from the iron back toward the face.

Smoke from the split. ” The men who were there remembered it the rest of their lives: a blow from below so heavy that the floor of the drift jumped under their boots, and the two strikers were knocked off their feet. A second blow, and a crack opened in the floor of the drift, starting at the foot of the anvil and running back along the floor toward the coal face, perhaps twenty feet, wide enough to put a hand in. A third blow, and out of that crack came a thin gray smoke that smelled, every one of them agreed, of a forge: hot iron, burnt coal, and quenching water.

A blacksmith shop on a winter morning with the fire just lit. Then silence. And the smoke thinned and stopped. Nobody struck the anvil again.

But the crack in the floor gave Wickham what he needed to see, and what he saw changed everything that came after. Under a coal seam there is always a layer of soft gray clay. Miners call it the underclay or the fire clay. Geologists know it as the old soil, the actual ground in which the great swamp forests grew three hundred million years ago, before their trunks and leaves fell and piled up and were pressed over unimaginable time into coal.

Every coal seam in the world sits on the floor of the forest that made it. The crack had opened that floor. And when Wickham had the crew clear the clay away from around the base of the anvil to see how deep it went, he found that the anvil was not sitting on the clay at all. It was sitting on wood.

On a stump. A great stump more than three feet across, turned entirely to stone and coal, rooted in the old clay floor and sawn off flat at the top. Its bark was still visible, pressed into the coal around it, a pattern of small diamond-shaped scales, like the skin of a snake or the scales of a fish. And set firmly into the top of that stump, exactly in the center, the way every blacksmith in the world sets his anvil into the top of a sawn log to give it spring and weight, was the base of the anvil.

That bark pattern is one of the most famous fossils in the world. Anyone who has ever visited a natural history museum and walked past the coal swamp exhibit has seen it. It belongs to a tree called a lepidodendron, the scale tree, a giant of the ancient coal forests which grew more than one hundred feet tall and has been extinct for nearly three hundred million years. Its stumps and its diamond bark turn up in coal mines all over the world.

Wickham knew it the moment he saw it, and he understood, standing in that drift with his lamp held over the stump, what it meant. The anvil had not fallen into the swamp that made the coal. It had not been buried with it, or carried into it, or lost in it. It had been set there on purpose, on a stump cut from a living scale tree in a living forest, by someone who knew exactly how to mount an anvil.

Someone had stood in that swamp forest three hundred million years ago beside that stump and worked iron on it for so long that the stone floor around it was carpeted with scale. And then the forest fell, and the swamp rose, and the coal formed around the anvil where it stood. And the smith who worked it, whoever he was, did not take it with him when he left. Wickham wrote one sentence about this in his letter to Baltimore that night.

It is the sentence that his family, who kept the copy he made for himself, have quoted ever since: “This is not an anvil that was lost in a swamp. This is a smithy that the swamp grew over. ”

Wickham now did the one thing a company engineer is never supposed to do. He stopped thinking about the coal.

For the next five days, instead of loading coal, the crew of the Bluestone drift dug out the floor of the ancient forest. They cut the coal back from around the anvil in every direction and then carefully stripped the clay floor beneath it, the way you would clear the floor of a buried house. Llewellyn recorded each day’s work in the mine book as plainly as he recorded tonnage. Read in order, those entries have the same shape every time: where they dug, what they found, how big it was.

And each day’s find was larger than the last. On the first day, beside the stump, half sunk in the clay, they found the jaw of a pair of tongs: black iron, unrusted, like the anvil. It was just one side of the tongs, the long handle and the gripping jaw, broken off at the rivet. It was a little over seven feet long.

Two men could lift it. One could not. On the second day, a few paces from the anvil, they found the trough: a long, deep basin cut into a single block of dark stone about eight feet long, sunk into the clay floor, filled to the brim with coal. Toiver, who had come back into the drift by then, knew what it was the moment he saw it.

It was a slack tub, a quenching trough, where a smith plunges hot iron to harden it. Every smithy has one. When the crew dug the coal out of it, they found the bottom of the trough lined with a thick, hard crust of rust-red scale, the kind that builds up in a quench tub after years and years of hot iron hissing into water. On the third day, beyond the trough, they found the hearth: a wide, low ring of stones blackened and cracked by heat, perhaps ten feet across, with a deep bed of ash and cinders in the middle, pressed now into a gray stone of its own.

And running into the side of the hearth through a gap in the ring of stones was an iron pipe as thick as a man’s thigh, flared at the outer end: the tuyere, the nozzle through which a smith’s bellows blows air into the fire. On the fourth day, they found the footprints. They were in the clay floor between the hearth and the anvil, where the clay had been soft and wet when the smithy was in use, and had held the shape of whatever stepped on it. Bare footprints pressed deep into the clay, the way your feet sink into wet sand.

There were dozens of them, overlapping, back and forth, along a single path worn smooth between the fire and the iron: the path a smith walks a thousand times a day from the hearth, with the hot work in his tongs, to the anvil, and back again. Each footprint was twenty-two inches long. Llewellyn measured them himself three times, and wrote it down three times. Isaac Dunn, who was there, told his pastor that he took off his own boot and set his bare foot inside one of the prints, and that his heel and toes together reached barely halfway along it.

And he said the depth of them was the worst of it. His own foot, pressed with his whole weight, sank in perhaps a quarter of an inch. Those prints went down nearly three inches into clay that was just as firm. Whatever made them had weighed many times what he did.

And then, on the fifth day, they found the other footprints. They were on the far side of the hearth, near the place where the bellows must have stood, in a patch of clay that the crew had not cleared until the very last. Smaller prints. Much smaller.

Bare footprints, perhaps ten or eleven inches long, the size of an ordinary grown man’s foot. A great many of them, crowded together in one place, back and forth, in a short, tight path. The path of someone who stands in one spot all day and shifts his weight from foot to foot. The path a striker makes, or the boy who works the bellows.

Isaac Dunn put his foot into one of those. It fit. He told his pastor that he stood there for a long time with his bare foot in that print, in the light of his lamp, in a drift three hundred feet into a mountain, on the floor of a forest that had been dead for three hundred million years. He said he was not thinking about the giant anymore.

He was thinking about whoever had stood in that spot at that fire, working the bellows for something twelve feet tall day after day, and whether they had stood there because they chose to. He never said what he decided. But he said that it was the day he understood why his grandmother had told him never to knock back. Wickham wrote his longest letter to Baltimore that night.

He described all of it: the tongs, the trough, the hearth, the tuyere, the two sets of footprints. He said that the drift had uncovered not a curiosity but a workplace, a complete smithy sealed into the base of the Pocahontas seam, standing exactly as its smith had left it. He asked the company to send geologists, and men from the universities, and a photographer. And he said that in his opinion the find was the most important ever made in American soil, and that no more coal should be taken from that drift until it had been studied.

The company’s reply came by wire three days later. It did not mention geologists or universities or photographers. It said that the Bluestone drift was to be closed at the point of the find, the heading walled up, and work resumed on a new drift elsewhere on the property. And it said that Mr.

Wickham was to return to Baltimore at once. To hear the other side of this story, you have to go east out of the coal field and across the Blue Ridge, to the people who were in Virginia long before any of the companies. The Monacan are a Siouan-speaking people whose country once covered a great sweep of the Virginia Piedmont and the mountains beyond it, from the falls of the James River westward toward the Blue Ridge. When the English arrived at Jamestown in 1607, the Monacan towns stood along the upper James, and the English met them within a year, when Captain Christopher Newport marched upriver into their country looking for gold and a passage to the sea.

Along the rivers of that country, the ancestors of the Monacan raised great earthen mounds over generations, adding to them again and again, places that still hold the remains of their dead. What came after was what came everywhere: land taken, towns abandoned, people pushed into the hills. By the nineteenth century, the largest surviving Monacan community lived on and around Bear Mountain in Amherst County, on the eastern edge of the Blue Ridge, farming small hillside plots and working as laborers in the orchards and fields of their white neighbors. In the twentieth century, the state of Virginia tried to erase them altogether.

Under a 1924 law, a state official spent years altering birth and marriage records to deny that Virginia Indians existed at all, classifying them by force as something else. The Monacan survived it. They won recognition from the state of Virginia in 1989 and from the United States government in 2018. That is the real history, and it should be told plainly before anything else is said in their part of this story.

In 1908, an Episcopal mission was opened at Bear Mountain with a small school for Monacan children. One of the young women who taught there in its early years was a schoolteacher from Lynchburg named Adah Pierce. She kept a notebook of things the older people of the mountain told her: stories and words and family histories, because she believed, rightly, that much of it would otherwise be lost. That notebook was kept by her family and has been seen by very few people outside it.

Adah Pierce had a brother who worked for the Norfolk and Western in the Pocahontas field. In 1909, on a visit home, he told her a story that every man on the railroad in that country seemed to know in some version or other: a story about an iron anvil found in the coal, with a face covered in blows from a hammer bigger than a man, and about the knocking that answered when men struck it. She did not think much of it. But a few weeks later at Bear Mountain, she happened to repeat it to one of the oldest men in the community, a quiet, white-haired man she calls in her notebook only “Mr.

Lane,” who had come to the school to bring his grandson home. She wrote that he did not laugh. He sat down on the schoolhouse step, and after a while he asked her exactly where in the coal the anvil had been found. She told him what her brother had said: low in the seam, on a stump, three hundred feet into the mountain.

And she wrote that the old man nodded slowly, the way a man nods when he is told the end of a story whose beginning he already knows. What he told her then, she wrote down that evening as closely as she could remember it. He said the old people had a story about the time before the mountains. Before the ridges were ridges, he said, all that country to the west was low and wet and covered in great trees, bigger than any trees now, with bark like the skin of a snake.

And in that wet country there lived the big ones. He did not give them any other name. The old people only ever called them that. They were tall, he said, twice as tall as a man and more.

And they were smiths. They worked iron, down in the low wet country among the great trees, and the sound of their hammers carried for miles. He said they did not work alone. They had people with them, people of our size, who fed their fires and worked their bellows and carried their water.

Whether those people had come willingly, the old story did not say. But it said that when the water rose and the great trees fell and the low country began to sink, the people of our size ran up into the high places and lived. And the big ones did not run. They stayed with their fires.

They went down with the forest, under the water, and then under the earth, and the ridges came up over the top of them. And they are still down there, he said, still working. On the ridges to the west, he told her, in the deep of winter, when the ground is frozen and everything is still, if you lie down with your ear against the bare rock of the mountain, you can sometimes hear them: a hammer very far down, slow and heavy, ringing on iron. The old people heard it.

His own grandfather had heard it, he said, on a ridge out past the New River when he was a young man hunting. And so the old people had rules about that sound, and he gave them to Adah Pierce one after another, and she wrote them down. If you hear the hammer in the mountain, be still. Do not answer it.

Do not dig where it rings. She asked him what would happen if someone did. If someone dug down and found their smithy and struck their iron and answered them. He was quiet for a long time, she wrote.

And then he told her. But she did not write his answer in the notebook with the rest. She wrote it on the last page by itself, many years later, after she had seen with her own eyes what the coal companies would one day do to the mountains of that country. The Bluestone drift was closed on the 12th of May 1884.

Llewellyn did it himself, with a crew of four, and Isaac Dunn was one of them. They did not try to move the anvil. Nobody suggested it. Wickham had estimated its weight at more than nine tons, and the company had made it clear that it did not care where the anvil ended up, so long as it ended up out of sight.

The men built a wall of heavy timber cribbing across the drift some forty feet back from the face, packed the space behind it with waste rock and clay, and faced it with a stopping of brick and mortar. Then they walked out of the drift, and Llewellyn locked a gate across the portal. Before they built the wall, three of them took something out of that smithy with them. Each took one thing, and each of those things, in its own way, is the reason we know any of this.

Charles Wickham took paper. On the last day before he left for Baltimore, he laid a sheet of heavy drafting paper over one of the great footprints in the clay and traced its outline in pencil, full size. Then he folded it in four and put it in his case. That tracing survives with his family.

It is twenty-two inches from heel to toe. And when it is unfolded on a table, people who see it for the first time, his family says, always do the same thing. They put their own foot next to it. Henry Toiver took iron.

He asked Llewellyn if he could have the broken jaw of the tongs, and Llewellyn, who wanted nothing from that drift in his mine, said yes. It took Toiver and three men to carry it out. He took it back to his smithy, and it hung on the wall above his own anvil for the rest of his working life. He never used it, and he never sold it.

After he died, it went to his son’s barn in Tazewell County, where, according to the family, it still hangs. It has never rusted. And Isaac Dunn took clay. On the last day, before the wall went up, Dunn went back alone to the far side of the old hearth, where the small footprints were, with his pick and a lamp and a wooden ore box.

He cut one of the footprints out of the floor, very carefully, in a single block of gray clay about the size of a family Bible, with the print of the bare human foot pressed into the top of it. He wrapped it in his coat and carried it out of the mine in the box. He never explained why. His pastor wrote that when he asked him many years later, Dunn said only that somebody should take that one out of there, since it couldn’t walk out on its own.

The block of clay is in the keeping of his church in McDowell County. It has dried and hardened over the years until it is nearly stone. The print in it is the print of an ordinary human foot: a grown person, barefoot, standing in one place. It is about the size of Isaac Dunn’s own.

Every coal geologist will tell you that the underclay beneath the Pocahontas seam is the floor of a forest that died three hundred million years ago, long before the first dinosaurs, long before there was any such thing as a human being anywhere on Earth. And Isaac Dunn’s church holds a piece of that floor with a human footprint in it. As for the men themselves, none of them came away from the Bluestone drift the same. Charles Wickham went back to Baltimore and wrote a full report, eleven pages with drawings.

The company acknowledged receipt of it and never mentioned it again. Within the year, his position was eliminated. He never worked in coal again. He became a teacher of mathematics at a private school, married, and lived quietly.

His children remembered only that he would not allow a hammer to be used in the house after dark, and that once, when a neighbor was nailing up a fence late on a winter evening, he went out in his shirtsleeves and paid the man a dollar to stop. Henry Toiver went on working iron for thirty more years, but his apprentices remembered one rule in his shop that he never explained and never bent. When he was done with the anvil for the day, he did not ring it. Every smith in the mountains ended his day with a few idle taps on the bare iron, the way a man drums his fingers on a table.

Toiver never did. When the last blow was struck, he laid the hammer down on the anvil face gently, without a sound, so that the iron would be silent overnight. Evan Llewellyn stayed with the company another seven years, working the new drift they opened on the far side of the hill. His mine book for those years is mostly tonnage and timber.

But every few months there is a short entry, always in the same words: “Passed the old portal tonight. Utterly quiet. ” Just that. His family never knew what he meant by it until they read the mine book for 1884.

And Isaac Dunn never went underground again. He left the coal in the summer of 1884. He worked as a teamster and then on the railroad, and in time he bought a small farm and raised a family and became a deacon in his church. He told his story of the anvil to very few people, and only when he was asked.

But his family remembered that on winter nights, when the house was quiet, he would sometimes go outside alone, lie down on the frozen ground behind the barn with his ear against the earth, and stay there very still for a long time. When his wife asked him what he was listening for, he told her that he was making sure they were still working. Because as long as you could hear the hammer, he said, you knew where they were. The Pocahontas coal field kept growing for another half century.

The little drifts gave way to great mines with miles of underground haulage, and the company towns spread along every hollow. Bramwell’s millionaires built their stone houses. Pocahontas coal fueled steamships, locomotives, and the battleships of the United States Navy. McDowell County, on the West Virginia side, became for a time one of the greatest coal-producing counties in the country, and tens of thousands of people lived in its camps.

And all through those years, in the mines of that field, the knocking never quite stopped. It never made the newspapers. It was not the kind of thing a man reported to a mine inspector. But the stories were passed down among the miners themselves, and enough of them were written down in letters and family recollections and the notes of folklorists who came through the coal field in later decades that a pattern can be seen in them.

They all have the same shape. A miner alone at a working face, late in a shift, taps his pick against a roof bolt or a rail, idly, the way men do. And from somewhere deep in the coal, far beyond where any mine has been driven, comes an answer. Three blows.

Heavy, slow. Different minds, different decades, different men who never met one another: Welsh miners and Hungarian miners and Black miners from Virginia and the Carolinas and white miners from the ridges. And in every version that has survived, the same answer. Three blows.

And in nearly every version, the same advice from the older men, passed down shift by shift across the whole field. If you hear the knocking, be still. Do not knock back. Knocking back is how they know where you are.

Isaac Dunn’s grandmother had said it in Virginia. Mr. Lane’s old people had said it on Bear Mountain. And the old miners of the Pocahontas field said it to every young loader who came into the mines for generations, often without the faintest idea where the rule had come from.

The Bluestone property changed hands. Around the turn of the century, the coal lands of the Pocahontas field were consolidated into larger and larger holdings until most of them were controlled by a handful of great companies, and the little Baltimore outfit that had once owned the hillside above Simmons Creek disappeared into one of them. The old Bluestone drift was never reopened. But there is one more thing in the record, and it comes from the most unexpected place of all: the mine maps.

Every underground coal mine keeps careful maps of its workings, for safety and for the law. And in the twentieth century, the big companies drove their mines through the great seam under that whole hillside, room after room, pillar after pillar, taking out the coal for miles. The maps survive, and some of them have been made public over the years. On those maps, the coal under the old Bluestone hillside is worked out almost completely: a vast grid of empty rooms and supporting pillars, except in one place above Simmons Creek, around the spot where the old Bluestone drift ran into the hill.

The maps show a single block of coal left completely untouched. Every mine that came near it drove around it. None of them went in. It is several hundred feet across, roughly round, and solid.

On one map from the 1920s, drawn by a mining engineer whose name is not recorded, there is a single word written in neat block capitals across the middle of it. “Reserved. ” Nobody has ever found a record of who it was reserved for, or why. Coal companies in that country did not, as a rule, leave valuable coal in the ground for no reason.

They left this for a hundred years. Every company that owned that ground, one after another, drew its rooms and its haulageways right up to the edge of that circle and stopped, as if they all knew where the knocking was coming from, and had all agreed, without ever saying so, not to knock back. Then the mountains started coming off. By the last decades of the twentieth century, much of the deep coal of southern West Virginia had been worked out, and the coal companies turned to a new method.

Instead of tunneling into a mountain to reach its seams, they took the mountain off the coal. They cleared the forest from a ridge, drilled it, blasted away the rock above the seams, hundreds of feet of it, and pushed the broken rock into the hollows below. Then they dug out the exposed coal with enormous machines, and moved on to the next ridge. It is called mountaintop removal.

Across southern West Virginia and the neighboring corners of Kentucky and Virginia, it flattened hundreds of mountains, buried hundreds of miles of streams, and changed the shape of the land forever. For the people who lived in the hollows below, it brought blasting that shook their houses, dust, and floods, and poisoned water. That is the real record of what happened to those mountains, and it should be told plainly. Blasting on that scale is closely watched.

Every large blast at a surface mine is recorded on seismographs set up around the site to measure how hard the ground shakes, so that the company can prove it is not damaging the houses nearby. Those recordings are made for every shot and kept. And most of them show exactly what you would expect: a sharp spike of vibration as the blast goes off, then a ripple, then nothing. In the late 2000s, a surface mine was working a ridge in the old Pocahontas country, not far from the hollow of Simmons Creek.

One of the engineers responsible for the blasting there, a man who has asked never to be named, noticed something in the seismograph records that he could not explain. After certain blasts, not every one, but some, the seismograph recorded something else. About a minute after the shot, when the vibration of the blast had died away completely, three more impulses: small, sharp, evenly spaced, coming, as far as he could judge, not from the surface where the blasting was, but from deep beneath the ridge. He thought at first it was an echo off some underground structure, an old mine perhaps.

But echoes come back at once, and they come back weaker. These came back after a pause, and they were the same strength every time, no matter how large the blast. He began to keep a list. Over the months that followed, he recorded the pattern after more than a dozen shots.

Three impulses. Always three. And then one day, after a particularly heavy production blast near the north end of the ridge, the closest that operation ever came to the old Bluestone hillside, the seismograph recorded something different. Not three even impulses.

A heavy one, followed by two lighter ones. Then again: heavy, light, light. And then a third time: heavy, light, light. He did not know then what that pattern was.

He learned it a few years later, when a retired miner in McDowell County, the grandson of a man who had worked with Henry Toiver, told him the old story of the anvil in the Bluestone drift, and of the blacksmith who rang it in his own rhythm, and of what had rung back: a heavy blow, two light ones, three times through. The engineer has said that he went back to his records that night and sat looking at that trace for a very long time. Then he looked at the date of the blast that had caused it. And then he looked at the mine plan, and saw where the next season’s blasting was scheduled to go.

Closer. That operation changed its plan the following year. The permits were amended, and the blasting was moved to a different ridge, away from Simmons Creek. The company gave no public reason.

The engineer left surface mining not long after. He has said only one thing about it since, and he has said it the same way every time: that somebody down there knows a blacksmith’s rhythm from a blacksmith who has been dead for more than a hundred years. And that the only way they could have learned it was by listening. So step back and look at the whole of it.

An anvil of black iron that will not rust, set into the top of a stump from a tree that has been extinct for three hundred million years. A face pitted by thousands of blows from a two-hundred-pound hammer, set at the knuckle height of a smith who stood twelve feet tall. A hearth, a quench trough, a bellows pipe as thick as a man’s thigh. Footprints twenty-two inches long, worn into a path between the fire and the iron.

And on the far side of the hearth, in one place, the footprints of someone our size. And then three blows from inside a mountain, every time the iron was struck. A blacksmith’s rhythm played back to him from the dark. A heading walled up.

An engineer sent home. A circle of coal left untouched on every map for a hundred years, under the single word “Reserved. ” And a seismograph trace, a century later, beating out the same rhythm from under a ridge that was being blasted away. Who benefits from all of that being forgotten?

The companies, certainly. A coal field worth fortunes could not afford a story about something living in the coal. But there is another way to see the circle of reserved coal on those old maps. Every company that owned that ground drew its tunnels right up to the edge of that circle and stopped.

They did not forget the anvil. They remembered it very carefully. They simply chose never to say why. Perhaps forgetting was never the point.

Perhaps the point was to keep the peace with whatever was keeping time down there. We do not know who the big ones were. We do not know how they came to be standing in a swamp forest at the dawn of the world, working iron with people of our size feeding their fire. We do not know what they were making.

But we know what Mr. Lane told Adah Pierce on the schoolhouse step at Bear Mountain, when she asked him what would happen if someone dug down and found their smithy and struck their iron and answered them. She wrote it on the last page of her notebook by itself, in an old woman’s hand, many years after she first heard it. She wrote that she had waited to set it down until she had seen with her own eyes the strip mines begin cutting the tops off the ridges of that country.

Here is what she wrote:

“He said that the big ones never stopped working, all this time, down under the ridges. But he said that they lost something when the water came up and the forest went down. They lost their small people, the ones who fed the fire, the ones who worked the bellows. Those people ran up into the high places and lived, and became us.

And the big ones went down into the dark alone. He said that is why they knock. They are not threatening anyone. They are calling.

They have been calling for their small people for longer than the mountains have been standing, and nobody has answered, because the old ones knew better than to answer. He said, if a man ever strikes their iron, they will know that the small people are still here, and they will know exactly where. ”

“And he said one more thing, and he said it looking west toward the coal country. He said, for now there is a mountain on top of them, so all they can do is knock.

But one day the men with the coal will take the mountains off. And when the last of the rock is gone from over the old fire, the big ones will not need to knock anymore. They will just look up. ”

Isaac Dunn died in 1931.

His church still keeps the account his pastor wrote down, and the block of gray clay he carried out of the Bluestone drift, with the bare footprint of someone our size pressed into it. Henry Toiver’s tongs still hang in a barn in Tazewell County. Charles Wickham’s tracing of a footprint twenty-two inches long still lies folded in a drawer in Baltimore. And above Simmons Creek, the circle of reserved coal is still there, untouched.

Around it, on every side, the mountains of the Pocahontas country have been mined and tunneled and blasted and pushed into the hollows. Ridge by ridge, the rock that has stood over that old fire for three hundred million years is being taken away. Somewhere under what is left, in the dark, in a smithy older than the dinosaurs, a hammer is still ringing on an anvil. A heavy blow.

Two light ones. Waiting for an answer.