 This 129,000-acre national monument contains a significant system of cultural and historical sites covering a 5,000 year period. Possessing one of the richest stands of Ironwood trees in the Sonoran Desert, the monument also encompasses several desert mountain ranges including the Silver Bell, Waterman and Sawtooth, with desert valleys in between. Elevation ranges from 1,800 to 4,261 feet. 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. With a stunning diversity of bird and animal life, the monument offers visitors many opportunities for viewing wildlife. A dazzling display of spring wildflowers result from abundant winter rains. There are no facilities. Camping is allowed up to 14 days. Taking your vehicle off roads or trails is prohibited. Visits to the area require special planning and awareness of such potential hazards as rugged and unmarked roads, abandoned mine shafts, poisonous reptiles and insects, extreme heat and flash floods. Visitors should bring plenty of water and gasoline, and stay on main roads.
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