Seamless DRGs do not have map collars and can be tiled together to create a seamless mosaic view of an area.Ī digital raster graphic (DRG) is a USGS data product. This mosaic is based on seamless DRGs, which only include the main body of the topographic map without the map collar. The elevation contour interval is 10 feet. The source map scale of the map is 1:24,000-scale (1 inch = 2,000 feet). Geological Survey digital raster graphics (DRG's) 7.5 minute topographic quadrangle maps that cover the State of Connecticut.
#DIGITAL RASTER GRAPHIC DRG SOFTWARE#
What hardware or software do I need in order to use the data set?.Is there some other way to get the data?.What legal disclaimers am I supposed to read?.What's the catalog number I need to order this data set?.Are there legal restrictions on access or use of the data?.How can someone get a copy of the data set?.How consistent are the relationships among the data, including topology?.Where are the gaps in the data? What is missing?.How accurate are the heights or depths?.How accurate are the geographic locations?.How well have the observations been checked?.How reliable are the data what problems remain in the data set?.To whom should users address questions about the data?.Who are the originators of the data set?.How does the data set describe geographic features?.
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