In late 2017, my friend JP and I explored in the backcountry of Joshua Tree National Park. On our way to another site, we stopped at a small petroglyph site in a wash that we are calling the "Big Wall Petroglyphs".
There are only a handful of petroglyphs here, along with a few mesquite trees. I bet it was an excellent place to stop and rest for the Native Americans who left their mark here, too. It is not far from the Boundary Island site; maybe it was a marker to get there.
No directions to this site.