Naco Mammoth Kill Site
The Naco Mammoth Kill Site is an archaeological site in southeast Arizona, about a mile northwest of Naco in Cochise County. It is listed on the U.S. National Register of Historic Places.
In September 1951, local resident Marc Navarrete reported the site after his father found two Clovis points while digging mammoth bones in Greenbush Draw, a wash formed by Greenbush Creek, a tributary of the San Pedro River.
Archaeologist Emil Haury excavated the site in April 1952 and, in five days, recovered a Columbian Mammoth skeleton together with eight Clovis points, including the two originally found by the Navarretes. The team believed the bones and points date to about 10,000 years before present. An additional point was found upstream in the arroyo.
A second, unpublished excavation in 1953 expanded the area of the original work and uncovered bones from a second mammoth.
In 2020, small charcoal fragments were found on a mammoth bone. Radiocarbon dating gave a mean date of 10,985 ± 56 years before present.
This page was last edited on 2 February 2026, at 09:30 (CET).