Two large buried structures near Egypt’s Red Pyramid may have formed part of an ancient hydraulic system designed to capture floodwater, trap sediment and regulate its flow, according to a study published in Nature and led by researchers at Cairo University.
The structures, located roughly 15 to 25 miles south of Cairo in the Dahshur necropolis, were previously interpreted as a stone-transport route and a natural rise, the report stated. The study proposes that the formations, which cut across Wadi Dahshur, served as dams within a broader water-management network that included a reservoir, a diversion canal and a possible triangular spillway.
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