The Tonto National Forest occupies about 3 million acres which generally lie north of
Phoenix to the Mogollon Rim and east to the San Carlos and Fort Apache Indian reservations. The western boundary is approximately Interstate 17, which stretches north of
Phoenix to
Flagstaff. The lower elevations are of the
Sonoran Desert type while the northern portion of the forest is generally Pinon, Juniper, and Ponderosa Pine types.
