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Northern Sierra Upper Montane Forests

Ecoregion in Sierra Nevada in CA, NV

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The Northern Sierra Upper Montane Forests ecoregion ranges in elevation mostly from 6,000 to 8,000 feet, and its forests have a mix of conifers, including red fir, white fir, Jeffrey pine, sugar pine, incense cedar, and some lodgepole pine. Intermixed are areas of quaking aspen groves. Some montane chaparral also occurs in areas of harsh exposure, repeated fires, and clear cuts. Geology types are mostly Mesozoic granitic rocks and Tertiary volcanics, although in the north these occur along with some areas of slate, sandstone, metavolcanics, and metasedimentary rocks. Soil temperature regimes are mostly frigid, with some cryic. Soil moisture regimes are mostly xeric, but are udic in areas where snow persists through spring.

— EPA

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