Lehner Mammoth-Kill Site - Credit: Wikimedia Commons
The Lehner Mammoth-Kill Site is in southern Arizona (Cochise County) on the west bank of the San Pedro River 1.5 miles southwest of the town of Hereford. It is significant for its association with evidence that mammoths were killed here by Paleo-Indians 11,000 to 12,000 years before present. Read more on Wikipedia
Source: en.wikipedia.org