If you were standing on the edge of a canyon in the San Juan Basin of the Colorado Plateau about 1,200 years ago, you may have heard a loud, distant sound reverberating off the rock faces and ...
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Conch shells, found buried at ancient Pueblo sites in New Mexico, were likely used as communication devices across the arid landscape. James Wainscoat via Unsplash If you were standing on the edge of ...
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