This article in The Smithsonian Magazine September 16th 2020 describes how drone footage has revealed new archaeological features thought to be part of Etzanoa."
Extract
"In the new paper, the archaeologists suggest that sites including the just-detailed trench were part of Etzanoa, a population center dubbed the “Great Settlement” by Spanish conquistadors.
Spanish colonizers first encountered Etzanoa in the 1590s, when an unauthorized group traveled north in search of Quivira, a mythical city of gold, according to Ars Technica. Though the expedition ended violently, one survivor managed to return and inform the Spanish of what he’d seen. In 1601, conquistador Juan de Oñate marched to the settlement, captured a resident and tortured him until he revealed the city’s name.
Archaeologists first excavated the site of the newly discovered council circle more than 60 years ago, Blakeslee tells Science News. But by 1967, they felt that they had discovered all of the mounds and earthworks located along Walnut River.
Thanks to new technology, contemporary researchers have proven these predecessors wrong. Led by Dartmouth anthropologist Jesse Casana, the study’s authors used nighttime thermal imaging to measure how daytime heat dissipated from the soil. The ancient ditch, which measures roughly 165 feet in diameter and 6.5 feet thick, is filled with looser soil than the tightly packed prairie around it; as a result, it holds more moisture and radiates less heat at night."
Full article here "https://www.smithsonianmag.com/smart-news/drone-imaging-finds-evidence-pre-columbian-great-settlement-under-kansas-ranch-180975818/"
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