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GUIDE TO FINDING GIS RESOURCES

National Data

Cartographic Boundary Files - U.S. Census Bureau
The Data Directory - from gisuser.com
Free GIS Data - national by region and world data, from Collins Software
Free GIS Maps and Resources - from MapCruzin.com
geodata.gov - U.S. maps and data
Geography Network - ESRI's data clearinghouse and map services
Geospatial Data Gateway - from USDA
GIS Data Depot - from Geo Community, a leading GIS online portal
GIS File Library - from Directions magazine
Libre Map Project - from USGS
National Archive of Criminal Justice Data
The National Atlas - provides electronic maps and services for the United States, you can create your own map using the Map Maker, or download data to your own GIS
National Elevation Dataset - from USGS
National Park GIS Datasets - from the National Park Service; Civil War, National Parks, trail and data for other NPS sites
National Hydrography Dataset - from USGS
National Landcover Dataset - from USGS
The National Map - public access to high-quality, geospatial data and information - from USGS
North American Transportation Atlas Data (NORTAD) - Bureau of Transportation Statistics
Starting the Hunt - guide to mostly on-line and mostly free U.S. geospatial data - from the University of Arkansas Library
Toxic Release Inventory Data - from U.S. Environmental Protection Agency
U.S. Fish & Wildlife GIS Home Page - geospatial data inventory and general GIS information
Water Resources Dataset - from USGS

GIS Spatial Data Server - from Radford University, digital data for Virginia and many surrounding states
Virginia Gazetteer - find digital maps, aerial photography and other geographic information for over 51,000 VA features
Virginia Geographic Information Network GIS
Virginia Locality GIS/Mapping Websites - by county, from the Virginia Dep't of Emergency Management

A to Z GIS: An Illustrated Dictionary of Geographic Information Systems - REFB G 70.212 .A86 2006