Mapping resources on the WEB

Informational resources

• USGS main web page
• Gateway to GIS resources
• GPS nuts info site

Data and Software

• Free GIS
• Libre Map Project free DRG downloads mostly for East Coast
• Avenza Global Technologies Numerous links to data and software resources
• USGS web page (EROS data center)
• MicroDEM Software that generates terrain images, top maps and cool reflectance maps - all for free
• 3DEM terrain visualization - easier and more stable than MicroDEM
• Topoweb Index of US topographic resources
• USGS Geodata U.S. SDTS DEMs and DLGs
• PNW DRG group DRG CDs
• GIS data depot lots of free maps, including DRGs of USGS quads
• Free utilities from Mentor software they have other resources

Commercial Programs

• Terrain Navigator DRG CD rom sets
• TOPO! Mapping Software
• Fugawi GPS moving map software
• MAC GPSy support some good resource links
• MapExplorer Software and Datasets
• Altimap Virtual terrain explorer software
• Ozi Explorer GPS mapping software

Online Maps

• CalTopo Topographic maps with slope shading
• US Census Bureau Tiger Mapping Service
• Terraserver
• America's Roof All 50 state highpoints
• Topozone Create a topographic map and print the web page
• USGS map browser and downloader - lots of map types available - very slow interface
• Global Landcover map browser and downloads
• NASA MrSid mosaics from Landsat data

Washington State

• USGS Washington State 7.5 min DLGs (SDTS format)
• UW Washington State 7.5 min DEMs (ASCII DEMs)
• UW Washington State 7.5 min 10 meter DEMs (Way cool)
• UW libraries Geospatial Data Archive
• Gisdatadepot county listing
• Geocomm downloads for Washington (they have worldwide data)

FTP sites

• USGS map data files (ftp)
• USGS map data
• University of Michigan