Barker Dam Nature Trail

The Barker Dam Nature Trail loops through the heart of the Wonderland of Rocks, Joshua Tree's most dramatic boulder landscape, to a historic cattle dam and a sheltered canyon harboring ancient Chemehuevi and Serrano petroglyphs. The dam itself was built around 1910 by cattlemen Bill Keys and C.O. Barker to impound rainwater for livestock, creating a small reservoir that today attracts wildlife from across the arid landscape. Desert bighorn sheep descend to drink at the water's edge, and the site is among the park's best locations to observe them at close range. The petroglyphs, carved into a smooth granite face near the reservoir, depict bighorn sheep, human figures, and abstract geometric designs. Vandalism in the 1960s by a film crew painted over the original rock art with chalk to make it more photogenic, damaging the authentic pigments; the paintings visible today are partly restoration work. The loop winds through boulders sculpted by 100 million years of weathering, with desert varnish streaking the granite in shades of black and orange.