Geographic Information Systems Links

Washington State and Local Government

• Clark County GIS
• King County Department of Development and Environmental Services, GIS maps and property and zoning research tools - Includes online information, documents, GIS map projects, and GIS news and King County GIS Center
• Lewis County Map Library
• Pierce County GIS Division
• Snohomish County Maps
• Sumner GIS Maps
• Thurston GeoData Center - Geographic information for Thurston County
• Washington State County Road Administration Board (CRAB) - Has countywide GIS maps for Washington State, some including land parcels with topographical features
• Washington State Department of Ecology GIS Page
• Washington State Department of Natural Resources GIS Data
• Washington State Department of Transportation Cartography and GIS
• Washington State Geographic Information Council (WAGIC) - WAGIC is the "statewide body responsible for coordinating and facilitating the use and development of Washington State's geospatial information"
• Washington State GeoSpatial Clearinghouse - Spatial information for Washington State; provided by University of Washington Libraries 
• Washington State Geospatial Data Archive - One-stop source for GIS coverages of Pacific Northwest
• WSDOT GeoData Distribution Catalog - Geospatial data for GIS at WSDOT
• Yakima County GIS and Center for Geographic and Statistical Analysis

National

• EPA Green Communities, GIS
• United States Geological Survey -Geography  -  Links to maps, geospatial data and related services
• U.S. Census Bureau Maps and Cartographic Resources

Commercial and Other Links

• Environmental Systems Research Institute (ESRI) - One of the top corporate GIS software sites; extensive information about products and applications. Producers of ArcInfo, ArcView, and other mapping software
• GeoPlace - Resource for spatial information; includes online publications, GeoWorld, GeoNews, job information and directory of GIS products and services
• GIS.com - Introductory guide to GIS (provided by ESRI)
• Mapquest.com - Includes maps, driving directions, and traffic information
• Urban and Regional Information Systems Association (URISA) - Nonprofit association of professionals using GIS and information technology in state and local government