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University Library

Geography and Global Studies

State Geological Survey Of California Map, 1873

petaluma 1873

State Geological Survey Of California Map, 1873. (David Rumsey Map Collection)

Online Map Sources

Regional Maps & Sources

Historical Atlas Map Of Sonoma County, California, 1877

North Bay Digital Maps

North Bay Digital Maps

North Bay Digital Maps include digital geologic and topo maps for Sonoma, Lake, Mendocino, Napa, Marin and Solano Counties.

Historical Maps

Map Reading & Citing