 The site contains more than 5,000 Hopi clan symbols, dating from perhaps as early as 1200 to the 1950s, inscribed on eight sandstone boulders.The boulders are scattered over an area of approximately , the tallest of which may reached over 5 meters.These petroglyphs cover the sides and tops of the boulders, and most of the symbols, 60% of the total, are on one stone known as boulder 48.