Fort Grant was home to the Camp Grant Massacre, a killing of 144 Native Americans who had surrendered. It was also an army post that was later transformed into a state prison. It was built in 1860 at the junction of Aravaipa Creek and the San Pedro River, which was originally known as Fort Breckinridge (1860 to 1866), then Camp Grant (1862 to 1872).


  • Fort Grant in the 1880s.
    Fort Grant in the 1880s.

The museum displays items from the time that Fort Grant was a military installation on up through its history as a state reformatory and later as a state prison. The collections include many items found on the grounds dating back to the late 1800s as well as a multitude of historic military photos.

Hours are Monday through Friday from 8 a.m. to 5 p.m. Admission is free.