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GIS Software:

The following links take you to sources for no-cost geographic information and data viewers:
  • ArcExplorer - A Windows 95-based data viewer that supports Shapefile vector and a variety of raster data (image) formats.
  • DEM Viewer, DLG Viewer and DEM3D Viewer - Enhanced Windows 95, NT, and 2000-based viewer for USGS digital elevation model (DEM) data, Digital Line Graph data (DLG) and Digital Elevation Model 3 Dimensional data (DEM3D)
  • DLGV32 - Enhanced Windows -based viewer for USGS digital line graph (DLG) and digital raster graphic (DRG) data.
  • PCI Geomatics - FreeView, SPANS Observer, Demoware
  • LandView III - A Windows-based viewer for selected Census, EPA, USGS, and NOAA data bases.
  • LandView III product options.
The following links take you to manufacturers of desktop mapping, image processing, and geographic information systems software: The following are on-line services that provide maps and information:

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U.S. Department of the Interior
U.S. Geological Survey
URL: http://water.usgs.gov/wsc/software.html
Last Modified: 14:37:55 Mon 23 Aug 2004
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