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Start Over You searched for: Year 1974 Remove constraint Year: 1974 Format GeoTIFF Remove constraint Format: GeoTIFF Subject Geoscientific Information Remove constraint Subject: Geoscientific Information

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1974. Rosenberg, Lewis I. This digital raster graphic (DRG) is a composite raster image of two scanned 1974 USGS topographic maps including the collar information, georefere... Lew Rosenberg, Consulting Geologist.