Ragged Top is a 3,907-foot-elevation (1,191 m) mountain summit located within Ironwood Forest National Monument, in Pima County of southern Arizona. It is situated 35 miles northwest of Tucson, in the Silver Bell Mountains, where it rises over 1,700 feet (520 m) above the surrounding terrain as a landmark of the area. Ragged Top is the biological and geological crown jewel of the monument for sightseeing and wildlife viewing, such as the Desert bighorn sheep and the desert tortoise. Ragged Top contains the greatest richness of species within the Sonoran Desert, including 401 plant species. Cathestecum erectum (common name false grama) is only found on Ragged Top in the state of Arizona. Saguaro and ironwood forests cover the bajadas surrounding this mountain. This geographical feature lies