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About Colorado River State Historic Park

The Colorado River State Historic Park is located on a portion of the grounds of the old U.S. Army Quartermaster Depot (QMD) established in 1864. For nearly 20 years, all the military posts in the Southwest traced their lifelines to the Yuma Quartermaster Depot. On the high ground above the Colorado River, the U.S. Army's warehouses held a six-month supply of clothing, food, ammunition and other goods for forts in Arizona, Nevada, Utah, New Mexico and Texas - and were surrounded by as many as 900 mules and their teamsters. This beautiful 10-acre park includes five buildings dating back to the Depot's earliest days - among the oldest and best-preserved buildings in the state of Arizona.

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About the Park

Yuma Quartermaster Depot was used by the US Army to distribute and store supplies that were sent to posts all over the southwest. The park seeks to conserve, enhance, and teach this history to all of our visitors.

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Park History

A significant site in the history of Arizona, Colorado River State Historic Park was founded to preserve its historic structures and interpret the site's diverse history.

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Programs & Events

Road to 250: Arizona Traveling Museum

Tuesday, February 24, 2026 11 a.m. - 7 p.m.

As part of Arizona’s statewide commemoration of America’s 250th anniversary, the Arizona250 Mobile Museum will make a special one-day stop in Yuma County at the Colorado River State Historic Park.

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Park and Facility Hours

Seasonal hours October 1-May 31

Tuesday-Sunday
9 a.m. - 4:30 p.m. (exhibits)
9 a.m. - 5 p.m. (gift shop)

Summer hours June 1-September 30

Thursday-Sunday
9 a.m. - 4:30 p.m. (exhibits)
9 a.m. - 5 p.m. (gift shop)

 

Park Entrance Fee

Adults (14+): $10.00
Youth (ages 7-13): $7.00
Children (ages 6 and younger): Free