Danger Cave in western Utah’s Bonneville Basin preserves one of the Great Basin’s longest records of human activity, with evidence of the Desert Culture from about 9000 BC to around AD 500. Its exceptional dryness protected fragile remains rarely found elsewhere, including textiles, nets, basket fragments, leather, paleofeces, plant remains, and bone, wood, and stone tools. Work begun in the 1930s and expanded in the 1950s by Jesse D. Jennings helped establish influential excavation methods and shaped understanding of a sparse Desert Culture population living in small groups and adapting for millennia to a demanding environment. The site became a National Historic Landmark in 1961 and was looted in 2019.