The United States Congress designated the Muggins Mountain Wilderness (map
) in 1990 and it now has a total of 7,711 acres
All of this wilderness is located in Arizona
and is managed by the Bureau of Land Management.
Just south of Yuma Military Proving Ground stands a cluster of rugged peaks at the western extreme of the Muggins Mountains, a region of colorful geologic strata and scenic landforms situated close to the California border. The most prominent summits are Muggins Peak at 1,424 feet, Klothos Temple at 1,193 feet, and Long Mountain at 914 feet. Deeply cut drainages, such as Twin Tanks Wash and Long Mountain Wash, dissect the area. A few hardy day hikers, backpackers, and rock climbers make the trek here, but there is an excellent chance you'll have this dry area to yourself. When crossing the military ground, visitors are required to stay on the main road.