Talk about leaving a mark! The oldest known human footprints in North America have been tested and dated to be about 10,550 years old. The footprints, which were taken from the Chihuahan Desert in northern Mexico in 1961, come from a region that was home to nomadic hunter-gatherers known as Coahuiltecans. While the footprints are the oldest known in North America, the oldest known prints in the Americas as a whole are from Chile, which date to 13,000 years ago.
