The park contains a museum, a number of historic sites, an underground archeology exhibit displaying the excavated foundations of the Tubac Presidio, and a picnic area.

[2] As the Spanish Empire attempted to expand into the frontiers of New Spain, Catholic missions were established throughout modern-day Mexico and the southwestern United States.

A year later, the Pimas surrendered and the Presidio San Ignacio de Tubac was established to protect the town and the surrounding area from further rebellion.

Poston performed marriages, granted divorces, officiated baptisms, printed his own money to pay his employees, and even established Arizona's first newspaper in 1859.

Other presentations at the weekend event include actor portrayals of the time periods during which Tubac has been active as well as mariachi music and cowboy rope tricks.