Calico Early Man Site

The Calico Early Man Site is a disputed archaeological site in an ancient Pleistocene lake located near Barstow in San Bernardino County in the central Mojave Desert of Southern California. In the 1960s, anthropologist, Louis Leakey, proposed the site contained artifacts created by early man, however, this proposal is not accepted by most archaeologists. This site is on and in late middle-Pleistocene fanglomerates (now-cemented alluvial debris flow deposits) known variously as the Calico Hills, the Yermo Hills, or the Yermo formation. Holocene evidence includes petroglyphs and trail segments that are probably related to outcrops of local high-quality siliceous rock (primarily chalcedony in freshwater limestone).

Archaeological site data from Wikidata (CC0). Summary from Wikipedia (CC BY-SA).