US Geological Survey Earth Resources Observation and Science Center. Provides aerial photography and digital orthophotography, elevation data (NED, DEMs, GTOPO30, etc), satellite imagery (ASTER, SRTM, SIR-C, NALC, etc), and land cover data (NLCD, LULC, GLCC, etc).
This is the community's public platform for exploring and downloading Alabama's open data, discovering and building apps, and engaging to solve important local issues. You can analyze and combine Open Datasets using maps, as well as develop new web and mobile applications.
AlabamaView is a consortium formed to promote research, education, and outreach of remote sensing and geographic information systems to Alabama citizenry. A major focus of AlabamaView is to provide centralized access to downloadable remotely sensed imagery and GIS layers.
Geological dataset for Alabama. The web page includes GIS data in many categories. Data are available for direct download (GIS shapefile format) on the page if the data source is Geological Survey of Alabama. If the data are from another source or agency, the weblink to the data is given.
The Southeast Alaska GIS Library is a partnership which stewards a significant and diverse array of geospatial data, applications, and services specific to Southeast Alaska. The search the library, click search data at the top of the screen.
CT Department of Energy & Environmental Protection GIS Open Data Website develops and shares authoritative geospatial information with federal, state and municipal government agencies such as the US Geological Survey, EPA, FEMA, CT Dept of Public Health, CDOT, and the CT Office of Policy and Management.
New Hampshire Department of Environmental Services provides easy access to quality geographic data and mapping tools through Geographic Information System (GIS), the Environmental Monitoring Database (EMD) and the New Hampshire Geological Survey (NHGS).
NC OneMap is a strategic resource providing a collection of authoritative data and web services. It is an organized effort of numerous partners throughout North Carolina, involving local, state, and federal government agencies, the private sector and academia. Search for or browse the data, use it in your applications, analyze it with your tools, or build apps using the APIs.
The Geospatial Enterprise Office (GEO) coordinates with government agencies to develop and manage geographic information. It communicates about Geographic Information Systems (GIS) issues with users. It guides development of Oregon's GIS data standards. Working together, state, federal, and local governments are improving the geographic information they share.
The Rhode Island Geographic Information System (RIGIS) is a consortium of government and private organizations employing computer and communications technology to manage and use a collective database of comprehensive geographically related information.
The Rhode Island Geographic Information System (RIGIS) distributes open geographically-referenced datasets that represent a wide range of topics, including transportation, infrastructure, and the environment.
TX Land Office uses Geographic Information Systems (GIS), aerial imagery, 3D elevation data, and field data collection to compile, analyze, and distribute the most accurate geospatial data possible about the location of natural and cultural resources.