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Photointerpretive map of landslides and surficial deposits of northernmost Napa County, California Photointerpretive map of landslides and surficial deposits of northernmost Napa County, California
This map shows various types of landslide deposits, scarps, and related topographic features, in addition to other types of surficial deposits, in northernmost Napa County, California. It was prepared by viewing overlapping vertical aerial photographs with a stereoscope. This method allows the geologist to see a three-dimensional model of the terrain to be analyzed and thereby permits...