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Chaco Canyon: Garden of Eden or salty-soiled pilgrimage site?

The remains of elaborate stone houses, some with hundreds of rooms, and other structures scattered throughout New Mexico’s Chaco Canyon attest to advanced settlements built there by ancestral Puebloans between A.D. 800 and 1250. But how these peoples subsisted amid the arid climate and seemingly infertile ground of the canyon has long puzzled scientists. In a new study, researchers suggest that Chaco Canyon’s salty desert soils may have supported ample agriculture after all.

17 Jan 2017