If you want to see some petroglyphs there are places to go in Death Valley to see them. Here's one:
The Greenwater Canyon petroglyph site is located in the Greenwater Mountains of southeast Death Valley, and about 35 miles northwest of Shoshone, California. This section of Greenwater Canyon ranges from 30 to 100 feet wide, is about a quarter long, and the steep boulder sides tower 50 feet above the canyon floor. At this point the canyon runs down hill south to north, and the majority of petroglyphs are at least 10 feet above the sandy bottom.
LINK: http://www.petroglyphs.us/photographs_petroglyphs_Death_Valley_GC.htm