Fallen boulders on desert hillsides
– The Apache Trail through the Tonto National Forest has cliffs, saguaro and boulder-strewn hillsides lining the road. The yellow-green areas are lichen growing on the rock face.
The Tonto National Forest is rugged and spectacularly beautiful country, ranging from Saguaro cactus-studded desert to pine-forested mountains beneath the Mogollon Rim. There are eight Wilderness Areas totaling over 590,000 acres, four lakes formed from dams on the Salt River with boating, swimming and water sports as well as camping and hiking. The deep red color in the rocks is due to the presence of hematite (iron oxide, otherwise known as rust) that stains the sandstone.