Researchers have developed an imaging technology able to identify hidden mounds to help unravel the history of Native Americans. Credit: Carl Lipo
Archeology: new imaging method allows identification of North American mounds - science news in brief

Mounds are artificial elevated structures, like little hills, formed through gradual accumulation of debris upon which a continuously occupied settlement is built. People lived in such areas for hundreds or thousands of years. They are invaluable for archeology, but difficult to find because they are hidden by vegetation or by the landscape. Now, scientists have used a new image-based analysis technique to identify hidden North American mounds, which could reveal valuable information about pre-contact Native Americans. To achieve this, they used satellite images and a special software designed to automatically identify mounds.

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Scientific publication: Southeastern Archaeology