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Tehama Terraces

Ecoregion in Central Valley, CA

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The Tehama Terraces ecoregion forms a dissected plain between the coastal hills to the west and the western margin of the Sacramento Valley. Quaternary alluvial and colluvial materials overlie slightly consolidated Pliocene sandstone and conglomerate. The soil temperature regime is thermic and soil moisture regime is xeric. Common vegetation includes blue oak; needlegrass dominates on some fine-textured soils, and vernal pools are common.

— EPA

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