Digital Raster Graphic (DRG) Mosaic of Idaho at 1:24,000-scale
The downloadable ZIP file contains a georeferenced MrSID (.sid) file.  This data set is a mosaic of individual DRGs georeferenced to the IDTM83 grid. The original Digital Raster Graphic (DRG) is a raster image of a scanned USGS topographic map including the collar information, georeferenced to the UTM grid.  DRGs are …