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Thursday, March 28, 2024 | Back issues
Courthouse News Service Courthouse News Service

Grand Canyon-Fossil Footprints

Grand Canyon National Park employees Klara Widrig, left, and Anne Miller examine a rock that revealed fossilized footprints at the Grand Canyon in northern Arizona. Some researchers have estimated the footprints are 313 million years old, among the earliest found at the Grand Canyon. (Image courtesy of Grand Canyon National Park)

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