The Dzrtgrls and I headed to the Mojave desert a few years ago to find a petroglyph and pictograph site. We were not disappointed. This is a large petroglyph site that requires a few miles of hiking. It has thousands of petroglyphs and covers several square miles in a lonely corner of Mojave National Preserve.
Most petroglyphs are likely of Chemehuevi, Mohave, and/or Archaic origin. If you venture out here, please respect this site. It is an amazing place.
We even found an arch! You can read the Dzrtgrls trip report here.
No directions to this site but this is a good place to park: 35.06965°, -115.32985°