Long before the sand dunes formed at White Sands National Park, ice age teenagers left their footprints in the mud, only to be discovered thousands of years later: Graphic by Karen Carr

Staff Report –

WASHINGTON, D.C. – New scientific research conducted at White Sands National Park in New Mexico has uncovered the oldest known human footprints in North America. The discovery reveals evidence of human occupation in the Tularosa Basin beginning at least 23,000 years ago, thousands of years earlier than previously thought.

The fossilized human footprints were buried in multiple layers of gypsum soil on a large playa in White Sands National Park. Seeds embedded in the footprints were radiocarbon dated and analyzed by the U.S. Geological Survey to establish their age.

The research dramatically extends the range for the coexistence of humans and Pleistocene (ice age) megafauna and confirms that humans were present in North America before the major glacial advances at the height of the last ice age closed migration routes from Asia. The findings are detailed in an article published in the journal Science.

“This study illustrates the process of science – new evidence can shift long held paradigms,” said USGS Acting Rocky Mountain Regional Director Allison Shipp.

White Sands National Park contains the world’s largest-known collection of Pleistocene age (ice age) fossilized footprints in the world and has been recognized as a megatracksite since 2014. In addition to human footprints, tracks from the Columbian mammoth, saber-toothed cat, dire wolf, and other ice age animals have been discovered.

Scientists from White Sands National Park, the National Park Service, U.S. Geological Survey, Bournemouth University, University of Arizona and Cornell University, in connection with the park’s Native American partners, have collaborated and consulted on this research.

“These incredible discoveries illustrate that White Sands National Park is not only a world-class destination for recreation but is also a wonderful scientific laboratory that has yielded groundbreaking, fundamental research,” said Superintendent Marie Sauter.

White Sands National Park protects and preserves the world’s largest gypsum dunefield, at least 23,000 years of archaeology, adaptive flora and fauna, as well as Works Progress Administration-era historic pueblo buildings.

More information about the park’s fossilized footprints is available online at this link.

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