Data Sources
- Environmental Systems Research Institute (ESRI)
- Earth Resources Observation Systems (EROS) EROS Data Center
- U.S. Census Bureau
- Federal Emergency Management Agency (FEMA)
- National Park Service Geographic Information Systems (NPS)
- National Geospatial-Intelligence Agency (NGA)
- U.S. Army Corps of Engineers Geographic Information Systems (USACE)
- National Wetlands Inventory (NWI)
- National Aeronautics and Space Administration (NASA)
- Alaska Satellite Facility SAR (Synthetic Aperture Radar) Data Center
- Land Processes Distributed Active Archive Center Land Processes Distributed Active Archive Center (LPDAAC)
- NASA Goddard Earth Sciences (GES) Distributed Active Archive Center (DAAC)
- NASA Langley Research Center Atmospheric Science Data Center (LARC)
- Jet Propulsion Laboratory Physical Oceanography Distributed Active Archive Data Center (JPL DAAC)
- Oak Ridge National Laboratory Distributed Active Archive Center (ORNL DAAC)
- Socioeconomic Data and Applications Center SEDAC
- NASA's Earth Observing System (EOS)
- Trimble GPS
- National Geodetic Survey Continuously Operating Reference Stations (NGS)
- Nebraska State Surveyor's Office Lincoln, NE
- DRG Maps for U.S.
- National Hydrography Dataset (NHD)
- Natural Resources Conservation Service (NRCS)
- Geographic Names Information System (GNIS)
- The National Map Seamless Server
- Illinois Natural Resources Geospatial Data Clearinghouse
- Florida Geographic Data Library