NOS Data Explorer - Offers interactive mapping tools that allow users to locate NOS products in any area in the United States and its territories through a metadata catalog. Louisiana Statewide GIS - Contains GIS and mapping data on the state of Louisiana. Infoshare: Community Data on New York City - Profile and compare neighborhoods, and produce original tables. NH GRANIT - New Hampshire's statewide GIS data clearinghouse. PASDA - Official public access geospatial information clearinghouse for the state of Pennsylvania. MassGIS - GIS data layers for the state of Massachusetts. Vermont Center for Geographic Information - Stores and distributes geospatial data for the state of Vermont. Rainwater Basin GIS Data Site - Provides free GIS data sets pertaining to the Rainwater Basin wetlands in Nebraska. Community Mapping Network - Created to share a wealth of natural resource information and maps with communities in British Columbia, Canada. Allows users to add data. National Historical Geographic Information System - Provides, free of charge, aggregate census data and GIS-compatible boundary files for the United States from 1790 to the present. Alaska State Geo-spatial Data Clearinghouse - Alaska state and local government geospatial maps and data. Florida Geographic Data Library - Spatial (GIS) data for the state of Florida. Indiana Spatial Data Portal - Provides access to more than 17 terabytes of Indiana geospatial data. Maine GIS Data Catalog - Provides access to the digital geographic data produced by the GIS Executive Council and Maine GeoLibrary Board. MiGDL - Center for Geographic Information provides GIS data and maps for the state of Michigan. Minnesota Geographic Data Clearinghouse - Source for geographic data and maps for the state of Minnesota. Kentucky Geological Survey's Geospatial Data Library - Electronic maps and GIS data for the state of Kentucky. Mississippi Geospatial Clearinghouse - Provides access to the GIS data resources of Mississippi. Missouri Spatial Data Information Service - Provides public access to GIS and census data about the state of Missouri. Montana Geographic Information Clearinghouse - Comprehensive collection of geospatial data for the state of Montana. New Jersey GIS Department - GIS data and mapping services for the state of New Jersey. North Dakota GIS - Portal to North Dakota geospatial data and information. OGRIP - Provides access to Ohio GIS data. Oregon Geospatial Enterprise Office - Coordinates, develops and maintains geographic information for the state of Oregon. South Carolina GIS - Geospatial data and information on the South Carolina Geographic Information Council. South Dakota GIS - GIS data and maps for the state of South Dakota. West Virginia GIS Technical Center - Provides GIS data and services for the state of West Virginia. Mississippi Automated Resource Information System - GIS data clearinghouse for the state of Mississippi. Kansas Geospatial Community - State of Kansas Data access and support center (DASC). DASC catalogues, archives, and distributes databases with FGDC compliant metadata and direct FTP access. NC OneMap - GIS data for the state of North Carolina. Rhode Island GIS - Data clearinghouse for the state of Rhode Island. Tennessee Spatial Data Server - GIS data for the state of Tennessee. DOQQs, DRGs, DEMs, boundaries, wetlands, and geology. Hawaii Statewide GIS Program - Free downloadable GIS spatial data, metadata, and maps. New York State GIS Clearinghouse - Operated by the New York State Office for Technology. Provides access to the New York State GIS Metadata and Data Repository.