Largest known rock art images in the United States by Native Americans discovered in Alabama

Archaeologists in Alabama have discovered the longest known painting created by early Native Americans, according to a new study. Native Americans made this record-breaking 1,000-year-old image – of a 10-foot (3-meter) long rattlesnake – as well as other paintings, with mud on the walls and ceiling of a cave, likely depicting spirits of the world. underground, the researchers said.

The cave has hundreds of cave paintings and is considered the richest site of Native American rock art in the American Southeast, the researchers said. To investigate his historical art, the team turned to photogrammetry, a technique that involves capturing hundreds of digital images to build a virtual 3D model. Using this method, the researchers identified five previously unknown giant rock paintings known as glyphs.

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