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Largest Known Native American Rock Art Images Discovered in Alabama

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

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