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This photo is from Photo Gallery: Visions of Earth—Beauty, Majesty, Wonder
Lake Natron, Tanzania
Photograph by George Steinmetz, National Geographic
An airplane casts a shadow over the red waters of Lake Natron in Tanzania, part of the East African Rift Valley. The water's red hue is due to algae that live on salts spewed from nearby volcanoes. The East African Rift Valley system begins in northern Syria and extends across East Africa into Mozambique.
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