Map showing areas of potential rockfalls in the Snake River Canyon near Twin Falls, Idaho
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Pre-Monterey (Miocene) subcrop and structure contour maps have been compiled from existing maps and well-hole data to depict the distribution of rocks that lie beneath the Monterey Formation and on which Tertiary rocks were deposited. These maps indicate the general topography of the sea floor when the Monterey Formation was deposited.
This digital map database, compiled from previously published and unpublished data, and new mapping by the authors, represents the general distribution of bedrock and surficial deposits of the Silver lake 7.5 minute quadrangle. The database delineates map units that are identified by general age and lithology following the stratigraphic nomenclature of the U.S. Geological Survey. The scale of the source maps limits the spatial resolution (scale) of the database to 1:24,000 or smaller.
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