Utah is home to earliest use of a wild potato in North America – nearly 11,000 years ago

The town of Escalante in southern Utah is no small potatoes when it comes to scientific discovery; a new archaeological finding within its borders may rewrite the story of tuber domestication. Researchers from the Natural History Museum of Utah and Red Butte Garden at the University of Utah have discovered potato starch residues in the crevices of a 10,900-year-old stone tool in Escalante, Utah—the earliest evidence of wild potato use in North America. This is the first archaeological study to identify a spud-bearing species native to the southwestern United States, Solanum jamesii, as an important part of ancient human diets. The researchers pieced together evidence from stone tools, ethnographic literature and modern gardeners to show that Utahans have used the species intermittently for over 10,000 years. The Escalante area was even previously known as “Potato Valley” to early settlers. Several Native American tribes, including Apache, Hopi, Kawaik, Navajo, Southern Paiute, Tewa, Zia and Zuni, consumed S. jamesii. The findings were posted Monday by the Proceedings of the National Academy of Sciences. Phys.org story. Go here to watch video