Lake Tahoe was clear to an average depth of 69.6 feet in 2008, according to UC Davis scientists who have monitored the lake since 1968. That keeps the clarity measurement in the range where it has ...

In early July, a Twitter account devoted to science and nature posts tweeted out a picture that it said was taken from Flathead Lake, Montana, which it claimed had “the clearest water on Earth.” The ...

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INCLINE VILLAGE, Nev. — UC Davis Tahoe Environmental Research Center next week will be celebrate Father Angelo Secchi’s 203rd birthday. To honor him, TERC has declared Tuesday, June 29, to be Secchi ...