Maps and Geospatial Information: Maps by U.S. government agencies

Many agencies and departments with the U.S. federal government produce maps and mapping data.  This information is very high quality and very authoritative.

• The National Map of the United States – Includes variety of data including topography, census, and environmental.
• U.S. Topo Quadrangles by U.S. Geological Survey (USGS) -- Up-to-date official topographic maps from USGS. The maps are available in digital form or print-on-demand.
• U.S. Geological Survey (USGS) Publications Warehouse -- Portal to all publications of U.S. Geological Survey (USGS).
• FEMA Flood Map Service Center by the Federal Emergency Management Agency (FEMA)
• Web Soil Survey maps from the U.S. Natural Resources Conservation Service
• U.S. Nautical charts (domestic) by the United States Office of Coast Surveys.
  • Historic U.S. Nautical Charts (domestic) by United States Office of Coast Surveys
• International Nautical Publications (charts) by National Geospatial Intelligence Agency (NGA)
• Geospatial Multi-Agency Coordination Group (GeoMAC)--Wild Fires -- An internet-based mapping application designed for fire managers to access online maps of current fire locations and perimeters in the conterminous 48 States and Alaska.
• Hazard Mapping System Fire and Smoke Product by the NOAA Office of Satellite & Product Operations
• Digital maps for the National Park Service by the U.S. National Park Service
• Envirofacts -- A single point of access to select U.S. EPA environmental data. This Web site provides access to several EPA databases to provide information about environmental activities that may affect air, water, and land anywhere in the United States.
• Official Federal Land Records -- Access to the official land records of the Bureau of Land Management (BLM), and General Land Office (GLO).