Taking its name from one of the longest living trees in the Arizona desert, the Ironwood Forest National Monument is a true Sonoran Desert showcase. Keeping company with the ironwood trees are mesquite, paloverde, creosote, and saguaro. The Silver Bell, Waterman and Sawtooth are rugged mountain ranges, from 1,800 to more than 4,200 feet in elevation. Desert valleys filled with diverse wildlife, such as pronghorn and mule deer, complete the setting. Three areas within the monument, the Los Robles Archeological District, the Mission of Santa Ana del Chiquiburitac and the Cocoraque Butte Archeological District, are listed on the National Register of Historic Places. The monument is a corridor for drug and human smugglers. Be alert for illegal activities and law enforcement operations.