Researchers are surveying ground in New Mexico’s White Sands National Monument. To do this, they’re using an established technology for a novel purpose. The scientists are scanning the surface of an area called Alkali Flat with ground-penetrating radar (GPR). And what they now discover below this ancient dried-out lake bed gives them some startling new insights into humans and animals from 12,000 years ago.
In 2019 the archeologists were working on the eastern section of Alkali Flat. This area once lay beneath water, which is now known as Lake Otero. This lake once covered most of what is known as the Tularosa Basin – a large, enclosed depression which collected water. During the time of the last Ice Age, this water gradually soaked into the ground and it left behind the dried lake bed.