12,000 Year Old Human Footprints Discovered in Utah Desert

In upcoming research, Cornell researcher Thomas Urban has found human footprints on the salt flats of the Air Force's Utah Testing and Training Range (UTTR) that are thought to have been there since the end of the last ice age.

On the Utah Test and Training Range, archaeological footprints are identified with pin flags. R. Nial Bradshaw/Provided

While tra…