Presidio Santa Cruz de Terrenate, Spanish colonial archaeological site near Tombstone, Arizona, US

Presidio Santa Cruz de Terrenate is a Spanish colonial fortress whose adobe walls and foundations remain on a bluff overlooking the San Pedro River. The site preserves the layout of different structures that made up this military installation on the northern frontier.

The fortress was founded in 1775 under King Charles III of Spain to protect the northern frontier from Apache raids. This military installation represented Spain's strategy for defending its remote colonial territory.

The name Santa Cruz came from the Sobaipuri settlement that stood here before the presidio, and it later passed to the Santa Cruz River. The garrison was made up of soldados de cuera, leather-jacketed cavalrymen of the New Spain frontier. Archaeologists Charles DiPeso (1951) and later teams from 2007 to 2010 found Hohokam pottery and Archaic arrowheads in the adobe walls.

The site is accessible via a walking trail that passes interpretive signs explaining the history and layout. Visit during cooler months since the location is open and exposed to the sun.

Excavations between 2007 and 2010 revealed evidence of three separate settlement periods stacked on top of each other, from Sobaipuri and Hohokam to earlier Archaic cultures. This shows how the same location held value for different peoples across thousands of years.