The Indian Hill site is a series of petroglyphs on an outcrop of Dakota sandstone. They were first photographed in 1867 by Alexander Gardner. Carlyle Smith, noted archaeologist and anthropologist from the University of Kansas, suggested in 1949 that the Cheyenne or Arapaho may have created some of the later glyphs, particularily those representing horses. The petroglyphs depict owls, bison, beaver, cervids, humans, equestrian figures, bison tracks, thunderbirds, serpintine figures, and ladder-like figures. In more recent time, grafitti and vandalism have been added.
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