Bone fragments of extinct species of ground sloth, horse, camel, and elephant found in a nearby cave mingle with weapons and radiocarbon dates from Idaho’s earliest hunters. Archaeologists have confirmed that people camped here at least 10,000 years ago, and some suspect they might have arrived 6,000 years earlier. The youngest occupation layer began at 1300 A.D., and it includes figurines, baskets, moccasins, pottery, and bones of much smaller animals than those hunted by the Paleoindian pioneers.