Mule Tank is a small, seasonal tinaja along the foothills of the Mule Mountains along the Colorado River. It is a long walk to any other source of water, so this catchment would have been an essential source of water in this vast and arid region. The petroglyphs themselves are in the small canyon below and at the tank.
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Corn Springs Petroglyphs and the Little Chad Cabin

Canebrake Skeleton Pictographs
Hidden in a granite rock shelter near an ancient Kumeyaay village site is a unique set of pictographs. Most of these pictographs are typical of the La Rumorosa Style, but what is unusual here are the skeleton figures. I have not seen them anywhere else in the Kumeyaay territory.

Palen Tank Petroglyphs
I recently followed an ancient Native American trail out to a water tank and petroglyph site. What got my attention to this site was the report of historical inscriptions and the fact that it is way off of other Native American trails I knew about.