In the last decade, the data has been piling up, revealing a Native American culture over 10,000 years old. The evidence of Native Americans at Green River Preserve is extensive. There are petroglyphs on Long Rock, bivouacs throughout GRP, a fault line where an ancient rock quarry is located, many lithic scatters on the surface from flint knapping, and points dating from 10,000 BC to 500 years ago. Additionally, there is Native American pottery, a 5000-year-old Native American fire ring 2 feet below the surface, dwelling sites along the Green River, evidence of long-distance trade, and more.
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