Ancient footprints found in Mexico valley

A trail of 13 fossilized footprints running through a valley in a desert in northern Mexico could be among the oldest in the Americas, Mexican archeologists said.

The footprints were made by hunter gatherers who are believed to have lived thousands of years ago in the Coahuila valley of Cuatro Cienegas, 190 miles (306 kms) south of Eagle Pass, Texas, said archaeologist Yuri de la Rosa Gutierrez of Mexico's National Institute of Anthropology and History.

"We believe (the footprints) are between 10,000 and 15,000 years old," De la Rosa said in a news release Wednesday. "We have evidence of the presence of hunter gatherers in the Coahuila desert more than 10,000 years ago."