Filters: Tags: Campbell, M.R. (X) > Categories: Image (X)

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Steeply tilted rocks of San Pedro Point. San Mateo County, California. 1913. Steeply tilted rocks of San Pedro Point: San Mateo quadrangle, shales and sandstones of Martinez formation. San Mateo County, California. 1913. Plate 1 in U.S. Geological Survey. Folio 193. 1914. Categories: Image; Tags: California Folio 193, Campbell, M.R., Glacier National Park, Professional Papers, photo print