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The Puquios caldera partly overlaps the Carrizalillo caldera margin. These subsidiary calderas have left lava conduits, lacustrine and intrusive structures and other geomorphologic features. [4] The caldera is constructed in the terrain of the San Antonio formation, which forms megabreccia in the caldera. [2]
The California Volcano Observatory (CalVO) is the volcano observatory that monitors the volcanic and geologic activity of California and Nevada. It is a part of the Volcano Hazards Program of the United States Geological Survey , a scientific agency of the United States government .
The caldera was classified in 2018 by the U.S. Geological Survey as one of three volcanoes in the state — along with 15 elsewhere in the U.S. — considered a "very high threat," the highest ...
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A dangerous winter storm is slamming Northern California with rare blizzard conditions and fierce winds as it threatens to unload up to 10 feet of snow in the mountains and snarl travel.
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Mount Whitney is the highest mountain peak in the Sierra Nevada, the State of California, and the contiguous United States. The following list comprises the mountain ranges of U.S. State of California designated by the United States Board on Geographic Names and cataloged in the Geographic Names Information System .
This article comprises three sortable tables of major mountain peaks [a] of the U.S. State of California. The summit of a mountain or hill may be measured in three principal ways: The topographic elevation of a summit measures the height of the summit above a geodetic sea level. [b] [c] The first table below ranks the 50 highest major summits ...