"Horseshoe Canyon contains some of the most significant rock markings in North America. The Great Gallery, the best known pictograph panel in Horseshoe Canyon, includes well-preserved, life-sized figures with intricate designs.
"American Indian rock markings found in Horseshoe Canyon are most commonly painted in a style known as “Barrier Canyon.” This style is believed to date to the Late Archaic period, from 2000 BCE to 500 CE (Common Era). During this time, nomadic groups of hunter-gatherers made Horseshoe Canyon their seasonal home. During later periods, the Fremont and ancestral Puebloan cultures left their own distinctive rock markings in the canyon, but their presence was brief in comparison, and final abandonment occurred by 1300 CE.
"The Great Gallery is the best known and most spectacular of the Horseshoe Canyon panels. This well preserved site includes both pictographs (painted figures) and petroglyphs (figures etched in the rock with a sharp stone). The tapered, life-size figures lack arms and legs but frequently contain intricate designs. These designs are characteristic of the Barrier Canyon style."