Boulders like this one at Shooting Gallery are covered with rock art from three different periods: 1) the more abstract Great Basin Abstract Style consisting of lines and shapes; 2) the Pahranagat Representational Style with animal shapes and somewhat realistic anthropomophs (human figures); and 3) the Fremont Representational Style with abstract anthropomorphs made from trapezoids and other shapes.

[3 captures blended in Helicon Focus for focus stacking]