Agua Fria National Monument (26091167574)

Adjacent to rapidly expanding communities, the 71,000-acre Agua Fria National Monument is approximately 40 miles north of central Phoenix. The monument encompasses two mesas and the canyon of the Agua Fria River. Elevations range from 2,150 feet above sea level along the Agua Fria Canyon to about 4,600 feet in the northern hills. The diversity of vegetative communities, topographic features, and a dormant volcano decorates the landscape with a big rocky, basaltic plateau. This expansive mosaic of semi-desert area, cut by ribbons of valuable riparian forest, offers one of the most significant systems of prehistoric sites in the American Southwest.