Hell Gap complex is a Plano culture from 10,060 to 9,600 before present. It is named after the Hell Gap archaeological site, in Goshen County, Wyoming. Other Hell Gap complex sites In addition to the Hell Gap archaeological site, other Wyoming archaeological sites include the Sister's Hill site in northeastern Wyoming and a bison kill site near Casper, Wyoming. Jones-Miller Bison Kill Site is the only Hell Gap complex site in Colorado. Hell Gap point The Hell Gap projectile points are long stemmed, convex blades. See also Goshen point — of the nearby Goshen complex. References Notes Citations Archaeology of the United States Archaeological cultures of North America Hunter-gatherers of the United States Archaeological sites in Wyoming Native American history of Wyoming Paleo-Indian period Paleo-Indian archaeological sites in Colorado Pre-Columbian cultures Prehistoric cultures in Colorado Goshen County, Wyoming