Heart Mountain: Wyoming's WWII Japanese American Prison Camp

— ny_wk

Heart Mountain was one of ten American concentration camps where the United States imprisoned its own citizens during World War II, locking nearly 14,000 Japanese Americans behind barbed wire on the windswept high plains of Wyoming. For three brutal years, between the towns of Cody and Powell, an entire community built lives, raised children, buried their dead, and quietly fought for their freedom in the shadow of a single jagged peak.

The story of Heart Mountain is one of the most uncomfortable chapters in American history, and also one of the most inspiring. It is a story of injustice on a staggering scale, and of ordinary people who refused to let injustice have the final word. To understand how a free country imprisoned thousands of its own loyal citizens without a single charge or trial, you have to start with one signature on one document in the winter of 1942.

How Executive Order 9066 Built the Heart Mountain Camp

On February 19, 1942, just ten weeks after the attack on Pearl Harbor, President Franklin D. Roosevelt signed Executive Order 9066. The order authorized the military to designate vast "exclusion zones" along the West Coast and to forcibly remove anyone deemed a potential threat. In practice, that meant one group: people of Japanese ancestry.

There was no evidence of disloyalty. There was no espionage to point to. Roughly two-thirds of those swept up were American citizens by birth, many of them children. Yet fear, racism, and wartime hysteria combined into a policy that uprooted around 120,000 people from their homes, farms, and businesses, often giving families only days to sell everything they owned for pennies on the dollar.

The government first herded evacuees into hastily converted "assembly centers" at fairgrounds and racetracks, where families slept in horse stalls that still smelled of manure. From assembly points in Pomona, Santa Anita, and Portland, they were loaded onto trains with the window shades drawn and shipped inland to permanent camps. One of those destinations was a barren stretch of Wyoming sagebrush named for the heart-shaped limestone peak that loomed over it.

Life Inside the Wire at Heart Mountain

The first prisoners arrived at Heart Mountain on August 11, 1942. Over the course of the war, the camp would hold a total of 13,997 people, peaking at 10,767 at one time. That single number is staggering: at its height, this barbed-wire enclosure was the third-largest "town" in the entire state of Wyoming.

The camp sat at an elevation of about 4,600 feet, where the high-desert climate swung from blistering summers to savage winters. Temperatures plunged as low as 30 degrees below zero, and the wind never seemed to stop. Into this environment the government dropped rows of flimsy tar-paper barracks that were never meant to last and never built to keep anyone warm.

The construction was shockingly poor. Doors and windows were installed crooked and refused to close all the way. Gaping cracks ran between the wallboards, letting in dust in summer and knife-edged cold in winter. Each family was assigned a single room, sometimes barely larger than a parking space, regardless of how many people had to share it.

Inside, there was almost nothing. Each person received an army cot, two thin blankets, and a pillow. The room held one bare light bulb and a small wood-burning stove. There was no running water, no bathroom, and no insulation. Residents had to walk to communal latrines and mess halls in all weather, surrendering even basic privacy.

And yet, people refused to merely survive. They began to rebuild dignity with their own hands. Families hung bed sheets to carve out makeshift "rooms" within a single barrack. They stuffed newspaper and rags into the wall cracks to hold back the dust and cold. They planted gardens in soil everyone said was worthless and coaxed real harvests out of it.

A Town Behind Barbed Wire

What rose out of the sagebrush at Heart Mountain was, against all odds, a functioning community. The camp had schools where children recited the Pledge of Allegiance every morning behind guard towers. It had a hospital, a newspaper, churches, baseball diamonds, scout troops, and even a high school football team that took the field against schools from the surrounding white towns.

Much of the camp ran on the labor of the incarcerated themselves. There was a garment factory, a cabinet shop, a sawmill, and a silk-screen shop, almost all staffed by prisoners. Their pay was a cruel insult: roughly 12 to 19 dollars a month, a fraction of what free workers earned for the same skilled labor.

It was here that a young boy named Norman Mineta grew up behind the wire. While confined, he struck up an unlikely friendship with Alan Simpson, a Boy Scout from nearby Cody who visited the camp. Decades later, both men would serve in the highest reaches of American government, Mineta as a U.S. Cabinet secretary and Simpson as a U.S. Senator, and their lifelong friendship became a living symbol of reconciliation. Today the site's Mineta-Simpson Institute is dedicated to that very bond.

Courage and Defiance: The Fair Play Committee and the 442nd

The deepest drama at Heart Mountain was a moral one. In 1944, the government began drafting young men out of the camps and into the army, demanding that they fight for a nation that had imprisoned their families without charge. For many, the contradiction was unbearable.

A group of incarcerees formed the Heart Mountain Fair Play Committee, led by Frank Emi and a handful of others. They were not disloyal, and they made that clear. Their stance was rooted in principle: they would willingly serve once their constitutional rights were restored and their families were freed. Until then, they refused induction as an act of conscience.

Heart Mountain produced the highest rate of organized draft resistance of any of the ten camps. The price was steep. Eighty-five young men were convicted of Selective Service violations, and seven Fair Play Committee leaders were prosecuted and imprisoned for daring to insist that citizens deserved the rights of citizens.

At the same time, more than 800 men from Heart Mountain chose a different path of courage and enlisted. Many joined the legendary 442nd Regimental Combat Team, an almost entirely Japanese American unit. Fighting ferociously in Europe while their families remained behind barbed wire, the 442nd became, for its size and length of service, the most decorated unit in the history of the United States military. Resisters and soldiers alike were proving the same truth from opposite directions: their loyalty was never in question, only the country's treatment of them.

Closure, Reckoning, and Remembrance

Heart Mountain closed on November 10, 1945, after the war ended. The prisoners were released with little more than a small sum and a bus ticket, sent back to communities that had often sold off or seized everything they once owned. The injustice did not end at the gate; rebuilding shattered lives took decades.

The reckoning came slowly. In 1988, the U.S. government formally apologized for the wartime incarceration and authorized reparations to surviving victims, an official admission that the entire program had been driven by racism and fear rather than military necessity. In 2007, the Heart Mountain site was designated a National Historic Landmark, and on August 20, 2011, the Heart Mountain Interpretive Center opened to tell the full story.

Today, the peak still rises over the windblown plain, and a surviving chimney, a hospital boiler stack, and the names of the imprisoned stand as silent witnesses. Heart Mountain endures not as a relic but as a warning, a place that asks every visitor a single hard question: what happens to liberty when a free nation decides that some of its people are less free than others?

5 Mind-Blowing Takeaways

• A prison camp the size of a city: At its peak, Heart Mountain held 10,767 people, making it the third-largest "town" in all of Wyoming, surrounded by barbed wire and guard towers.
• Citizens jailed without charge or trial: Roughly two-thirds of those imprisoned were American-born citizens, locked up purely because of their ancestry under Executive Order 9066.
• Survival at 30 below zero: Families endured Wyoming winters in uninsulated tar-paper barracks with no running water, stuffing rags into wall cracks just to keep out the cold.
• The bravest resistance of all ten camps: Heart Mountain had the highest organized draft-resistance rate, while its enlistees helped make the 442nd the most decorated unit in U.S. military history.
• An apology that took 46 years: Not until 1988 did the U.S. government formally apologize and pay reparations, admitting the incarceration was driven by prejudice, not security.

Frequently Asked Questions

Why were Japanese Americans sent to Heart Mountain?

After Pearl Harbor, President Roosevelt signed Executive Order 9066 in February 1942, authorizing the forced removal of people of Japanese ancestry from the West Coast. With no evidence of disloyalty, nearly 120,000 people were incarcerated in ten camps, including Heart Mountain in northwest Wyoming.

What were living conditions like at Heart Mountain?

Conditions were harsh. Families crowded into small, poorly built tar-paper barracks with no running water, no bathrooms, and no insulation, heated only by a single wood stove. Winter temperatures dropped to 30 degrees below zero, and residents stuffed rags and newspaper into wall cracks to survive.

What was the Heart Mountain Fair Play Committee?

It was an organized resistance group led by Frank Emi and others who refused military induction until their constitutional rights were restored and their families freed. Heart Mountain had the highest draft-resistance rate of any camp; 85 men and seven leaders were imprisoned for taking that principled stand.

Can you visit Heart Mountain today?

Yes. The Heart Mountain Interpretive Center, located between Cody and Powell, Wyoming, opened in 2011 on the National Historic Landmark site. It preserves original structures and exhibits that document the wartime incarceration and honor those who lived through it.

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