| DIVA-GIS | Bureau of Transportation Statistics USDOT |
| NATURAL EARTH public domain map data | National Center for Education Statistics |
| Digital Chart of the World Resources | SEDAC CIESIN socio-economic maps & data |
| Country Boundary shapefiles | Geography Network GIS data |
| GADM Country/World shapefiles | IPUMS worldwide census data to study change |
| FAO digital country boundaries | Social Explorer demographic data for the US |
| GIS Data Depot | GLOBE images of continents |
| ESRI census TIGER shapefiles | Census base maps/TIGER/Line Shapefiles |
| Outline maps (in vector format) | |
| OPEN SOURCE: | Geo for All free geospatial education |
| Discover QGIS | download | Inkscape (vector drawing & editing) |
| Open Street Maps | Map Warper georectifier, and image georeferencer tool |
| AIRPORT DATA |
| TOPOZONE US topo quads | MAPFINDER find and order USGS topos |
| TRAILS topo quads | MapTech Topos and Nautical Charts |
| NJ Topographic Quads | Symbols for large scale maps (PDF) |
| NY Topographic Quads | State Index maps for topos |
| onestopmaps | outline maps (in vector format) |
| from the Education Place | Digital vector maps |
| d-maps.com | from the Perry Castaneda Map Collection |
| National Atlas | from National Geographic |
| Google Earth (requires Chrome browser) | GLOBAL elevation images |
| Satellite and 3D Posters | Terraserver |
| NASA Image Archives | Earth Imaging |
| NASA Photo Gallery | Space Shuttle images |
| NASA Visible Earth Images | SPACE IMAGING |
| MAP SYMBOLS | |
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USGS patterns/symbols
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USGS color chart
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| Geologic Map Patterns |
USGS DRG color palettes
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USA (USGS)
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Antarctica (USGS)
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International (NIMA)
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| Surface Distance Between Two Points of Latitude and Longitude |
| National Geographic | |
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Tactile Graphics
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