Marble Canyon

Marble Canyon is a remote, unmarked canyon route through polished carbonate walls, narrows, fossils, and protected petroglyph areas in Death Valley's Cottonwood Mountains. From the 4WD trailhead at the end of Marble Canyon Road, follow the gravel wash south into the first narrows, then take the side-canyon route toward the deeper narrows and return the same way. The stored line follows the physical corridor once; the visitor distance is about 8.4 miles total out and back. Expect route-finding rather than a maintained trail, rough rocky and sandy footing, and occasional scrambling around dry falls and constrictions. The route is in designated wilderness, with no reliable water or facilities beyond the remote road access. Never touch or disturb petroglyphs, and do not enter the canyon when thunderstorms or flash flooding are possible.