The wood train left the gates of Fort Phil Kearney at ten in the morning on December 21, 1866. The teamsters had made the same run more times than they could count: out to the pinery west of the fort, cut timber, load the wagons, and come back before dark. That was the rhythm that kept a frontier garrison alive in a country that was trying every day to kill it. Less than an hour out, the pickets on Pilot Hill ran up the signal flag.

The wood train was under attack again. Inside the fort, Captain William Judd Fetterman asked Colonel Henry Carrington for command of the relief column. Fetterman had arrived only seven weeks earlier and had spent most of that time complaining, in private and sometimes in public, that Carrington was too cautious, that he did not understand how to fight Indians. Fetterman had said more than once that with eighty good men he could ride straight through the heart of the Sioux nation.

That morning he got his eighty men. What happened over the next ninety minutes became the worst defeat the United States Army had suffered in the West, a record that would stand until Custer rode into a similar trap on the Little Bighorn a decade later. The road itself was the cause. The Bozeman Trail, blazed three years earlier by the adventurer John Bozeman, cut north from Fort Laramie through the Powder River country toward the Montana gold fields.

It saved emigrants weeks of travel and ran straight through the best buffalo country left on the northern plains, land that the Treaty of Fort Laramie of 1851 had formally recognized as belonging to the Lakota, the Northern Cheyenne, and the Northern Arapaho. By 1865 the gold rush was pulling thousands of emigrants up the new road, and the army was building forts to protect them. In the summer of 1866, Carrington marched north with the 18th Infantry to build Fort Phil Kearny at the foot of the Bighorn Mountains and Fort C. F.

Smith ninety miles farther north. From the Lakota point of view, this was an act of war. The Powder River country was land they had fought the Crows for generations to hold, land where the buffalo still came in numbers thick enough to feed everyone. Now the white men were not just passing through.

They were building, cutting timber, running cattle, laying down a road and putting up walls. The Lakota chief Red Cloud had sat through the negotiations at Fort Laramie that spring. When the cavalry column under Carrington marched into the fort during those same talks, Red Cloud stood, pointed at the soldiers, walked out, and did not come back. He went home and started a war.

By the time Carrington’s men were laying out Fort Phil Kearny in July of 1866, Red Cloud was gathering allies: Oglala and Miniconjou Lakota, Cheyenne under chiefs like Little Wolf and Dull Knife, and some Northern Arapaho. Together they began what came to be called Red Cloud’s War. It was not a single campaign but a slow, grinding siege. Every wood train, every herd of cattle, every dispatch rider, every man who walked outside the gates was a target.

By mid-December, close to seventy soldiers and civilians had been killed in more than fifty separate engagements within sight of the fort. Fetterman did not see it clearly. He had served in the Civil War, been brevetted to lieutenant colonel for gallantry, and carried the assumptions of a man who had fought disciplined armies on open battlefields. He thought the Indians were poor fighters because they did not stand and trade volleys.

He thought their refusal to engage in massed combat was cowardice, and that one good charge by trained soldiers could break any tribe on the plains. He was about to be proven spectacularly wrong. When Fetterman rode out that morning he had exactly the eighty men of his boast: forty-nine infantrymen on foot, twenty-seven cavalry under Lieutenant George Grummond, two civilians named James Wheatley and Isaac Fisher who had volunteered to test their new repeating rifles, and Captain Frederick Brown, the post quartermaster, who had stayed past his transfer date for one reason: he wanted to take Red Cloud’s scalp. What Fetterman did not know was that on the far side of Lodge Trail Ridge, where Carrington had explicitly forbidden him to go, somewhere between fifteen hundred and two thousand warriors were waiting in the snow.

They had been gathering for three days, held ceremonies, picked their decoys, and rehearsed the trap. Two weeks earlier a similar trick had almost worked, but the soldiers had pulled back and the ambushers had broken cover too early. This time they would wait until the soldiers were too far in to escape. Carrington gave Fetterman his orders twice: relieve the wood train, drive off the attackers, and do not under any circumstances pursue beyond Lodge Trail Ridge.

He was so worried that he climbed to the sentry walk and watched through field glasses as the column marched away. By the time they were halfway out, the wood train had already broken free and the attackers had withdrawn. The mission was technically accomplished. Fetterman kept going.

On the ridge ahead, a small group of warriors, maybe ten of them, rode back and forth, yelling, gesturing, riding close, then falling back. One young Lakota on a pale horse kept dismounting, fiddling with his saddle, pretending something had gone wrong with his mount, pretending in every way to be exactly the kind of opportunity an arrogant officer could not refuse. That young man, according to multiple Lakota accounts, was almost certainly Crazy Horse. He was twenty-six years old, the most respected warrior in his band, chosen for the decoy work because he was steady and could lead the soldiers exactly as far as needed and not a step further.

Fetterman took the bait. The infantry moved up Lodge Trail Ridge from one direction, Grummond’s cavalry caught up, and all eighty-one men went over the crest and out of sight of the fort. The cavalry pushed ahead, eager, drawn by the decoys. The decoys held back when the soldiers slowed, rode forward when they came on, split apart and regrouped.

At one point two of them crossed paths so closely they almost knocked each other down. It was the agreed-upon signal. The trap was sprung. On both sides of the narrow ridge, warriors rose up out of the brush and rocks and gullies.

Lakota poured down from the east, Cheyenne from the west, Arapaho from the north, cutting off any retreat. The decoys turned and attacked. The cavalry tried to fall back up the slope to where the infantry had taken position among some large rocks. They almost made it.

The horses were useless on the snow and ice of the steep grade. The cavalry were firing single-shot Springfield carbines that had to be reloaded after every shot. The warriors were firing bows of mountain ash, drawing forty pounds of pull, firing as fast as they could reach for arrows. One historical estimate, based on the arrows recovered from the bodies, suggests that something like forty thousand arrows came down on the soldiers in less than an hour.

Grummond went down somewhere along the trail. The two civilians, Wheatley and Fisher, took position behind boulders with their Henry repeating rifles, the most modern firearms on the field, and held it. The warriors who attacked them said afterward that the two civilians killed and wounded more men than any of the soldiers. The infantry in the rocks lasted longer.

They formed a small circle facing outward and fought with single-shot rifles until their ammunition ran out. Whether Fetterman and Brown died fighting or took their own lives in the last moments has been argued for more than a century. The army’s official line for decades was that they shot each other to avoid capture. Lakota accounts said both were killed in the fighting.

No white survivor existed to contradict either version. The whole engagement, from the springing of the trap to the last man down, lasted somewhere between twenty and forty minutes. The Lakota said it took about as long as it takes a hungry man to eat a meal. Eighty-one armed men were killed on a snow-covered ridge by warriors using mostly bows and clubs.

There were probably no more than half a dozen repeating firearms on the soldiers’ side, and no more than fifty firearms among two thousand warriors. The army that had ground down the Confederacy eighteen months earlier had been swept off a ridge by men with bows. Inside the fort, Carrington heard the firing for a while. Then it stopped.

A relief party under Captain Tenodor Ten Eyck went out and climbed to where they could see down into the valley. Below, a sea of warriors moved along the bottom, some mounted, some on foot finishing their work. Ten Eyck could not advance. When the warriors finally drifted away, he led his men down.

The bodies of forty-nine men were brought back that afternoon in five wagons. What was on those wagons was so terrible that Margaret Carrington, the colonel’s wife, wrote that she did not look. The remaining bodies were left on the field overnight and brought in the next day, buried in a single mass grave south of the post. That night the temperature dropped to around thirty below zero and a blizzard rolled in.

The garrison had fewer than three hundred fighting men left. Carrington gave written orders that if the post were overrun, the women and children were to be taken into the powder magazine and the magazine detonated rather than allow them to fall into the hands of the warriors. The order was never tested. Out on the Tongue River, the warriors were celebrating.

They had won the greatest victory any of them could remember, and they had no intention of attacking a fortified stockade in a blizzard. Carrington did not know that. He needed reinforcements, and the nearest telegraph was at Horseshoe Creek, more than 190 miles south. One man stepped forward: John Phillips, a civilian contractor born Manuel Filipe Cardoso in the Azores, who had worked his way west through the gold rushes and ended up at the fort hauling timber.

The soldiers called him Portuguee. He asked for a horse, and Carrington gave him his own black thoroughbred. Phillips and another civilian named Daniel Dixon left the gates shortly before midnight. Dixon rode with him as far as Fort Reno, where they picked up a third man.

From there Phillips rode on alone to Horseshoe Station, watched the operator tap out the message, and, not satisfied, climbed back into the saddle for the last forty miles to Fort Laramie through the worst of the storm. He arrived on Christmas night. A full-dress garrison ball was underway in the officers’ quarters at Old Bedlam. Out of the dark, a man on a stumbling horse rode in, wearing a buffalo overcoat sheathed in ice, his feet wrapped in feed sacks.

The horse collapsed and died on the parade ground. Phillips walked into the ballroom, delivered Carrington’s dispatch to Colonel Innes Palmer, and the party broke up. The second cavalry was on the road north by morning. It took the relief column sixteen days to make the ride Phillips had made in four.

The story that came out of the disaster in the years afterward was shaped largely by the two Carrington women, both of whom wrote books defending the colonel’s reputation. Carrington had been relieved of command and blamed in part for what happened. The official narrative made Fetterman the villain: the arrogant captain, the man who bragged about riding through the Sioux nation and disobeyed direct orders. Some of that is fair.

But Carrington himself wrote in his initial report that Fetterman was evidently moving wisely, language that does not sound like a colonel describing a subordinate who is disobeying orders. Some historians have argued that Fetterman and Carrington may have planned a more aggressive maneuver than Carrington ever admitted, and that when it went wrong, the colonel’s defenders put it all on the dead man. The dead, after all, do not file reports. The Lakota called the battle 100 in the Hand, a name that came from a vision.

A Miniconjou holy man named White Swan had ridden out four times seeking a vision of how many soldiers would be killed. The first time he said ten, then twenty, then fifty. The fourth time he said he had seen a hundred soldiers in his hand and then they were dead on the ground. When the battle was over, eighty-one soldiers were dead.

The Lakota counted the vision fulfilled, for they had asked the spirits for a hundred and the spirits had given them eighty-one. In the short term, the battle changed almost nothing. The garrison held on through the winter, and by the following August, soldiers armed with new breech-loading rifles won sharp victories at the Wagon Box Fight and the Hayfield Fight. But the disaster had shocked the country, and General Sherman wrote to Grant that the United States must act with vindictive earnestness against the Sioux, even to their extermination.

The country, exhausted by the Civil War, had no appetite for a new war on the plains. The politicians went the other direction. In 1868, less than two years after Fetterman died, the United States signed a new Treaty of Fort Laramie. It conceded almost everything.

The Bozeman Trail was abandoned. Fort Phil Kearny, Fort C. F. Smith, and Fort Reno were abandoned, and the army marched out of the Powder River country.

The warriors rode in behind them and burned the empty stockades to the ground. Red Cloud signed the treaty in November of 1868, only after every fort had been confirmed empty. It was, on its face, the only war the United States ever lost to a Native American nation. The victory held for eight years.

In 1874, Custer led an expedition into the Black Hills in violation of the treaty and found gold. By 1876 the government was demanding the Lakota sell the Black Hills, and when they refused, the army was sent in. That campaign ended on a hill above the Little Bighorn, where Custer and 267 men of the 7th Cavalry were destroyed in an afternoon. Some of the same warriors who fought at Lodge Trail Ridge helped win it.

Crazy Horse was there, thirty-six years old, leading the charge that broke the cavalry’s last position. He died the following year, bayoneted at Fort Robinson while being arrested. He never had his picture taken. Red Cloud lived until 1909, blind, on the Pine Ridge reservation.

In his last years he gave interviews, looking back at the country he had grown up in and the country it had become. He said, “They made us many promises, more than I can remember, but they kept but one. They promised to take our land and they took it. ”

Phillips died in Cheyenne in 1883, of complications probably traceable to the long ride.

The bodies of Fetterman’s men were eventually disinterred and moved to the Custer Battlefield National Cemetery, where they lie within a hundred miles of where they fell. On the ridge itself there is a small stone obelisk, put up in 1908, a low wall around the rocks where Fetterman and Brown made their last stand. On most days there is no one there at all, just the same wind off the Bighorns that was blowing on the morning of December 21, 1866. The Lakota name for the place is 100 in the Hand.

The army called it Massacre Hill. Today it is called the Fetterman Battlefield. It was not a massacre. It was a brilliantly designed, perfectly executed military operation by men who understood terrain, understood their enemy, and understood patience.

They identified Fetterman’s overconfidence and used it against him. Eighty-one men learned that lesson on Lodge Trail Ridge. They learned it in twenty minutes, and they did not get to take it home.