From the record
“The Presidio of San Ignacio de Túbac or Fort Tubac was a Spanish built fortress. The fortification was established by the Spanish Army in 1752 at the site of present-day Tubac, Arizona.”
Wikipedia article Presidio San Ignacio de Tubac, CC BY-SA 4.0.
One of 51 National Register listings published here for Santa Cruz County · listed in 1970 · category: Site · built in 1752.
Sources: the Wikipedia article · the case file at the National Archives · the National Register database, National Park Service



