Discovery of 'calendar' rock carvings from Ancestral Pueblo in US Southwest surpasses 'wildest expectations'

Spiral petroglyphs carved into a canyon wall on the Colorado-Utah border may have been used as a calendar by the Ancestral Pueblo.

  Science/Technology   Dec 20, 2023   0   16  Add to Reading List
Discovery of 'calendar' rock carvings from Ancestral Pueblo in US Southwest surpasses 'wildest expectations'
Spiral petroglyphs carved into a canyon wall on the Colorado-Utah border may have been used as a calendar by the Ancestral Pueblo.
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