Upper Midwest Environmental Sciences Center

Data Transfer and Uncompression Information - DRG
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Maps, Quadrangles, and Figures
tree_f.gif Digital Raster Graphics

Data Transfer and Uncompression Information

Digital Raster Graphics

If you need geographic information system (GIS) software to view these data, the freeware program ArcExplorer is available to download.

To restore the data to a format accessible by image processing software or a geographic information system (GIS):

  1. Download and store the compressed file(s) on a personal computer (PC).
  2. Uncompress the data.
    If uncompressing a file at the DOS prompt, enter the file's name as a command (filename without the .exe extension).
    If uncompressing a file using a Windows 95, 98, NT, or 2000 Windows Explorer program, use the computer's mouse to double click on the file's name (e.g., o38090e1.exe).

Page Last Modified: April 17, 2018