Picacho Peak State Park is a park in the Arizona State Parks system, located between Casa Grande and Tucson just off Interstate 10 in Pinal County, Arizona. Its centerpiece spire, Picacho Peak, is visible for many miles rising above the desert floor. The summit rises to 3374' (1028 m) above mean sea level. Though appearing the remnant of a volcanic neck, it is now believed to be a tilted and eroded piece of rock overlain by a lava flow. Notwithstanding, the origins of the landform are apparent, as the peak is surrounded by an extensive lava field. The place name is redundant: "picacho" means "peak" in Spanish.
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