Tubac Presidio State Historic Park preserves the remnants of a military fort established by the Spanish in 1752 to control the local Pima and Apache Indians and to serve as a base for further exploration of the Southwest. The old Spanish fort has been excavated by archaeologists from the University of Arizona. An underground display features portions of the original foundation, walls, and plaza floor of the fort uncovered by the archaeologists. A museum at the site exhibits archaeological remains of Arizona’s first European settlement, and displays on the pre-European, Spanish colonial, Mexican Republic, and territorial periods. The park also preserves the historic Old Tubac Schoolhouse (circa 1885) and Otero Social Hall (circa 1914), which are both on the National Register of Historic Places.
The park is located 45 miles south of Tucson off Interstate 19 near the community of Tubac.