Petroglyphs at Atlatl Rock - Explored on 8/19/2012
I intentionally kept a small scribbling on the lower left hand side to give some perspective to some of our modern "petroglyphs". I was so mad to see those kind of defacement of these national treasures.
The below is quoted from johngregg.com/val1.htm
It is clear, however, that after about AD 1200-1300, a time of great drought, the Numic ancestors of the Southern Paiute occupied this portion of southern Nevada. More to the point is the fact that Altatl Rock contains petroghyphs that are fully characteristic of the prehistoric and ethnographic cultures of the Great Basin, but it also contains some motifs that are more typical of Puebloan rock art sites and presumably date to the period when farming was practiced here. These include birds drawn in profile, plants, outlined stars, and phallic stick-figure human motifs with bent arms and legs.