Essential Links to Cool Sites

• TopoZone, all U.S. topographic maps
• Terrain Map, excellent resources on virtual terrains
• TopoWeb, an index of topo map resources
• GIS Data Depot, lots and lots of good data
• Digital Globe, home of QuickBird 60cm data
• Space Imaging, home of IKONOS
• Maryland GLCF, a source of free Landsat data!
• Sky Terrain, some of the best-looking recreational maps ever
• 3D Nature creates excellent terrain software (World Construction Set and Visual Nature Studio)