According to the National Park Service, the cave is located in the Lake Mead National Recreation Area in Southeastern Nevada and Northwestern Arizona. In 1925, archaeologist Mark Harrington and paleontologist James Thurston discovered a cave in present day Lake Mead with the remains of large prehistoric mammals from 2,000 B.C.
Archaeological evidence suggests that several Native American cultures existed 8,000 to 12,000 years ago in what is now the Lake Mead NRA. Notches found on the bones of animals in the ancient cave at Lake Mead show that animals were prepared and eaten by humans. Three of the four desert ecosystems found in the United States – the Mojave Desert, the Great Basin Desert, and the Sonoran Desert – meet in the Lake Mead NRA.