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Photographer's Note

From the town of Mammoth Lakes, the first lake accessed is Twin Lakes, connected at the base of the southeastern slope of Mammoth Mountain. A foot bridge crosses the connection point. On one side of the lake are lava cliffs formed when Mammoth Mountain erupted. The other side has the Inyo National Forest's campground and Tamarack Lodge.

Mammoth Mountain is a lava dome complex within the southwest area of the Long Valley Caldera, consisting of 12 rhyodacite and dacite overlapping domes. They were formed in a long series of eruptions from 110,000 to 57,000 years ago. The area is still active with minor eruptions, the largest a steam eruption 700 years ago. Today volcanic gas continues to be discharged; large amounts of carbon dioxide are released near Horseshoe Lake, resulting in the killing of the trees.

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Additional Photos by Ray Anderson (photoray) Gold Star Critiquer/Gold Note Writer [C: 982 W: 1 N: 2463] (10097)
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