Fans of the Old West will find the Yuma Territorial Prison State Historic Park both enlightening and entertaining. Built in 1876, this prison was home to 3,069 prisoners, including 29 women over its 33 years of operation. Today the park offers a wide variety of annual events including the Gathering of the Gunfighters in mid-January, Haunted Tours in October and live Old West Reenactments every Sunday, October through April.