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Yuma Territorial Prison State Historic Park

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1 Prison Hill Road
Yuma, AZ 85364
Near Yuma, Arizona
State Parks
120 feet feet


On July 1, 1876, the first seven inmates entered the Territorial Prison at Yuma, and were locked into the new cells they had built themselves.

A total of 3,069 prisoners, including 29 women, lived within these walls during the prison's thirty-three years of operation. Their crimes ranged from murder to polygamy, with grand larceny being the most common. A majority served only portions of their sentences due to the ease with which paroles and pardons were obtained. One hundred eleven persons died while serving their sentences, most from tuberculosis, which was common throughout the territory. Of the many prisoners who attempted escape, twenty-six were successful, but only two were from within the prison confines. No executions took place at the prison because capital punishment was administered by the county government.

Despite an infamous reputation, written evidence indicates that the prison was humanely administered, and was a model institution for its time. The only punishments were the dark cells for inmates who broke prison regulations, and the ball and chain for those who tried to escape. During their free time, prisoners hand-crafted many items. Those items were sold at public bazaars held at the prison on Sundays after church services. Prisoners also had regular medical attention, and access to a good hospital.

Schooling was available for convicts, and many learned to read and write in prison. The prison housed one of the first "public" libraries in the territory, and the fee charged to visitors for a tour of the institution was used to purchase books. One of the early electrical generating plants in the West furnished power for lights and ran a ventilation system in the cellblock.

By 1907, the prison was severely overcrowded, and there was no room on Prison Hill for expansion. The convicts constructed a new facility in Florence, Arizona. The last prisoner left Yuma on September 15, 1909.

The Yuma Union High School occupied the buildings from 1910 to 1914. Empty cells provided free lodging for hobos riding the freights in the 1920s, and sheltered many homeless families during the Depression. Townspeople considered the complex a source for free building materials. This, plus fires, weathering, and railroad construction, destroyed the prison walls and all buildings except the cells, main gate and guard tower; but these provide a glimpse of convict life a century ago.

8:00 am to 5:00 pm Thursday - Monday
Open year round
Modern Restrooms
Visitor Center
Picnic Area(s)
Additional Details:
To get there, take I-8 to Yuma, take Exit 1 to Giss Parkway, turn at Prison Hill Road.
Basic Directions
Take I-8 to Yuma, take Exit 1 to Giss Parkway, turn at Prison Hill Road.
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