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Mono Lake

Terminal Lake More Salty Than the Ocean

Lake in Inyo NF, Mono Basin National Scenic Area, Mono Lake Tufa State Nature Reserve on Negit Island, Paoha Island in CA

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Mono Lake ( MOH-noh) is a large, shallow saline soda lake in Mono County, California, formed at least 760,000 years ago as a terminal lake in an endorheic basin. The lack of an outlet causes high levels of salts to accumulate in the lake. These salts also make the lake water alkaline. This desert lake has an unusually productive ecosystem based on brine shrimp that thrive in its waters, and provides critical nesting habitat for two million annual migratory birds that feed on the shrimp and blackflies (that also feed on the shrimp). The native Kutzadika'a people derived nutrition from the pupae of the alkali flies that live in the lake. When the city of Los Angeles diverted water from the lake, it lowered the lake level, which imperiled the migratory birds. The Mono Lake Committee formed in…

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Lake