Saguaro National Park is located near the city of Tucson in Pima County in the state of Arizona, United States. The park preserves Sonoran Desert landscapes, fauna, and flora, including the giant saguaro cactus (Carnegiea gigantea).
As stated in the foundation document:
The purpose of Saguaro National Park is to preserve and protect saguaro cacti; diverse biotic communities (including the Sonoran Desert, associated mountain ecosystems, and Rincon Creek); cultural and archeological features; and scientific, scenic, and wilderness values. The park provides opportunities for research, education, and public enjoyment, and strives to protect its resources from the effects of the encroachment from urbanization and development.