Mono Lake, at an elevation of 6,382 feet has held water for over 760,000 years. Of volcanic origins, Mono Lake covers an area of a little over 45,000 acres and is about 160 feet at its deepest point. The lake is too alkaline for fish to live, but supports an abundance of birds living on alkali flies, which in turn live off brine shrimp, which feed on algae growing in the water which is approximately 3 times saltier than the ocean.

The reserve was established to preserve the spectacular "tufa towers," calcium-carbonate spires and knobs formed by interaction of freshwater springs and alkaline lake water.


Geology
For the last three to four million years the whole basin has been tilting westward and sinking while the Sierra has been ...

An Ancient Sea
And it is an ancient lake, (about 760,000 years old) -- One of the oldest lakes in ...

Tufa
Mono Lake's tufa towers (pronounced "toofah") are spectacular examples of what nature can do with a few ...

Wildlife
Mono has been called a "dead sea" but it actually abounds with life. Few animals can tolerate Mono's salty, alkaline water, but ...


Regional Information

Geomorphic Provinces
California's geomorphic provinces are naturally defined geologic regions that display a distinct landscape or landform.

Basin & Range
The province is characterized by interior drainage with lakes and playas, ...

Sierra Nevada

Ecosystem Information

Mono Ecosection