Hmmm... not sure what the 'Rock Art' is, there's the Crack in the Ground and the Crater. Depending upon how your'e going in, NW side or SE side, there's only one road, dirt and signs along the way for the Crack and further West on the Paved road is the crater which can be a little tricky if using a wide RV... but 'Art"? like paintings/glyphs etc, don't recall any.. sorry, not much help, but the view on the mtn is great.. small spaces so a big RV might have problems. Hope that helps..