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Sunday On National Parks Traveler's Podcast: Footprints In Time

As you walk through the white gyp-sum sands of White Sands National Park in southern New Mexico, your footprints will likely be quickly erased by shifting winds. So it’s somewhat of a phenomenon of nature that the oldest footprints ever discovered in North America are not only found here – in perfect form, having withstood time and weather, but show that ancient humans lived here much earlier than previously believed.