101. The Illinois Natural Resources Geospatial Data Clearinghouse, Illinois Provides access to Illinois GIS data sets and metadata documentation. http://www.isgs.uiuc.edu/nsdihome/

Illinois Natural Resources Geospatial Data Clearinghouse University of Illinois at Urbana-Champaign site index license agreement ... contact us A gateway to Illinois GIS data sets and orthoimagery. Access Illinois GIS data sets and documentation (metadata) for ArcIMS Interactive Map Services, USGS digital topographic maps, aerial photography, orthoimagery, orthophotography, geology, land use, natural resources, and infrastructure. Illinois data sets and map data layers are available for download free of charge. Aerial Photography and Orthophotography 1938 - 1941 Historical Aerial Photographs 2005 Chicago Urban Area Orthoimagery 2005 NAPP Digital Orthophoto Quarter Quadrangles 2004 NAIP Digital Orthophoto Quarter Quadrangles ... 1998 NAPP Digital Orthophoto Quarter Quadrangles Learn about Digital Orthophotography USGS Digital Topographic Maps Digital Raster Graphic Files (DRG) Files 1:24,000, 1:100,000, and 1:250,000 Illinois Map Data Layers Statewide data : Geology, Elevation, Infrastructure County data have become Statewide data Illinois Geological Quadrangle Data Illinois Height Modernization Program Illinois Land Cover Data Other Data Illinois GIS Data Providers What's New?

102. Mississippi Geospatial Clearinghouse Provides access to the GIS data resources of Mississippi. http://www.gis.ms.gov

103. MSDIS Homepage Provides public access to GIS and census data about the state of Missouri. http://msdis.missouri.edu/

104. NRIS Geographic Information Comprehensive collection of geospatial data for the state of Montana. http://nris.mt.gov/gis/

Natural Resource Information System Geographic Information Natural Heritage Program Water Information ... NRIS Home Montana Geographic Information Clearinghouse Welcome to the most comprehensive collection of geospatial data for Montana . NRIS contributes data to national efforts such as GeoSpatial One Stop and the National Map. We actively support GIS coordination in our state and work hard to provide value-added products and services to a diverse community of users. Resource List The Montana Place Names Companion Montana GIS Portal State of Montana GIS Coordination Montana Land Information Advisory Council (MLIAC) ... GeoSpatial One Stop (GeoData.gov) GIS Data Hotlist Downloadable GIS Data Montana Framework (MSDI) Layers Aerial Photographs Topographic Maps NRCS Soils Data ... Satellite Imagery GIS Data List Our old list of data you may download from us. All this data and more is available through the Montana GIS Portal GIS Data Bundler Choose multiple layers and have them clipped to a geographic area or buffer. Web Services for GIS Applications Request information or data from NRIS Montana Maps Downloadable statewide, county, watershed, or regional map images in GIF or PDF format.

105. Nebraska Spatial GIS Databases GIS data layers for the state of Nebraska. http://www.dnr.state.ne.us/databank/spat.html

106. NJDEP GIS - Bureau Of Geographic Information Systems GIS data and mapping services for the state of New Jersey. http://www.nj.gov/dep/gis/

107. New Mexico RGIS Clearinghouse Spatial data, aerial imagery, and mapping services for the state of New Mexico. http://rgisbeta.unm.edu/

Home About FAQ Feedback ... Home Data Spatial Search Browse Data Interactive Mapping Web Services Photo Search About RGIS Image of the Week Welcome to the RGIS Clearinghouse The New Mexico Resource Geographic Information System (RGIS) is a cooperative program between the University of New Mexico (UNM) and the State of New Mexico Information Technology Commission (ITC). RGIS is dedicated to advancing applications of geographic information system technology within New Mexico's State agencies, local government and private industry. Spatial Search for Data. Discover data by using a variety of spatial search criteria, including County, USGS quad name, place name, geographic region, and selected map area. Browse for Data. Discover data by browsing through a hierarchical listing of data categories. Web Services. Most RGIS data products are available as Open Geospatial Consortium web services. This allows direct linkage to RGIS data from many desktop GIS applications without having to download the data files to a local hard drive. Interactive Mapping (coming soon).

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