Saguaro National Park

Location: Arizona

Year Established: 1994

Area: 91,439.71 acres (370.0 km2)

Annual Visitors: 673,572

Split into the separate Rincon Mountain and Tucson Mountain districts, this park is evidence that the dry Sonoran Desert is still home to a great variety of life spanning six biotic communities. Beyond the namesake giant saguaro cacti, there are barrel cacti, chollas, and prickly pears, as well as lesser long-nosed bats, spotted owls, and javelinas.