sunolmap2

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Sunol Regional Wilderness is east of the Calaveras fault. LY, Little Yosemite; FH, Flag Hill; P, southern parking lot. Tan colors are young sandstones of the Briones Formation and related units; green is Great Valley Sequence sandstone of Cretaceous age; blues and purples are Franciscan rocks including melange, graywacke (sandstone) and serpentinite.

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