Soil core samples show an ancient riverbed under the desert near many Egyptian pyramids, revealing an ancient waterway that dried up thousands of years ago
Many of the pyramids of ancient Egypt were built along a now extinct branch of the river Nile, geological surveys have revealed. This could explain why these pyramids, including the famed Great Pyramid of Giza, are clustered in a thin strip of arid, inhospitable land.
To transport the enormous number of people and resources necessary to build these pyramids, researchers have long thought that the Nile may have once had an offshoot that flowed by the construction sites. “We guess that it was roughly between 200 and 700 metres wide, and at least 8 metres deep at its deepest,” says Ralph.
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