Tubac Presidio State Historical Park 
Off Interstate 19
Tubac, AZ 85646
520-398-2252
http://azstateparks.com/Parks/TUPR/index.html
State Park: History
Tubac’s population steadily grew until, in 1860, it was the largest town in Arizona. The American Civil War, however, drained the region of troops, leaving it unprotected from Apaches, and Tubac was again deserted.