Pima County is in south-central Arizona against the border with Mexico. Organ Pipe Cactus National Monument, Saguaro National Park, Buenos Aires National Wildlife Refuge, Kitt Peak National Observatory, Tucson and the southernmost ski slopes in North America (on Mt. Lemmon) are here.

Pima County contains 9,186 square miles of land and 3 square miles of water. The county seat is Tucson.

Pima County, Arizona
A typical view in Pima County