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Mono Lake Volcanic Field

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The Mono Lake volcanic field, east of Yosemite National Park and north of the Mono Craters, consists of vents within Mono Lake and on its north shore. The most recent eruptive activity in the Long Valley to Mono Lake region took place about 300 years ago, when lake-bottom sediments forming much of Paoha Island were uplifted by intrusion of a rhyolitic cryptodome.

Quick Facts

Location: California, Mono County
Latitude: 38° N
Longitude: 119.03° W
Elevation: 2,121 (m) 6,959 (f)
Volcano type: volcanic field
Composition: basalt to rhyolite
Most recent eruption: 300 years ago
Nearby towns: Lee Vining
Threat Potential: Moderate

Summary

The most topographically prominent feature of Mono Lake volcanic field is Black Point, which rises above the northwest shore. It was formed as a sublacustral (below lake level) basaltic cone about 13,300 years ago when the water level at Mono Lake was higher. Lava domes and flows from Negit and parts of Paoha islands within Mono Lake. The most recent eruptive activity in the Long Valley to Mono Lake region took place about 300 years ago when lake-bottom sediments forming much of Paoha Island were uplifted by the intrusion of a rhyolitic crypto dome. Spectacular tufa towers line the shores of Mono Lake.

News

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New survey plumbs Mono Lake's depths for hydrothermal heat

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Unpacking CalVO's new seismic monitoring boxes

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3D Images of Magma Below Mono Craters Area