CNN.com - RSS Channel - HP Hero313 million-year-old fossil footprints at Grand Canyon are the oldest of their kind found at park

Finding fossil footprints at the Grand Canyon isn't particularly unusual. The expansive stretch of red rock is home to an array of formations containing preserved remains of the past.

August 21, 2020 at 03:56PM https://ift.tt/31dM2Bw fossil footprints at the Grand Canyon isn't particularly unusual. The expansive stretch of red rock is home to an array of formations containing preserved remains of the past.