Water Resources of the United States


WATER DATA FOR THE NATION

National Water Information System (NWIS)

View current and historical streamflow, groundwater level, and water-quality data

Data Discovery

For more data options, explore our data discovery tools.

Today's Water Conditions

View maps of current and historical conditions

Click map to go to current water resources conditions in the U.S.

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WATER SCIENCE SPECIALTIES

WATER SCIENCE BY STATE

USGS Water Science Centers are located in each state

Maps and GIS Data

Downloadable spatial data files for exploration and analysis.

Selected Water Spatial Data

Groundwater (well and aquifer information)

Surface Water (stream, lake, and reservoir conditions)

Water Quality (chemical, biological, and physical characteristics)

Watershed Theme Maps and Spatial Data

  • Hydrologic Units
    National watershed maps and data subdivided into four levels of successively smaller areas.
  • Science in Your Watershed
    Scientific information organized on a watershed basis.
  • Watershed Boundary Dataset
    Nationally consistent watershed data subdivided into 6 levels are available from the USGS and USDA-NRCS-National Cartographic and Geospatial Center's (NCGC) Watershed Boundary Dataset.

Mixed Theme Maps and Spatial Data (from the USGS and other sources)

  • USGS maps
    Printed maps, standards, names, symbols, descriptions, and additional explanatory information.
  • EarthExplorer
    Locate USGS imagery data by interactive map or place name. Query and order satellite images, aerial photographs, and cartographic products from the USGS.
  • Federal Geographic Data Clearinghouse
    Over 250 spatial data servers with digital geographic data are primarily for use in GIS, image processing systems, and other modeling software.
  • Geographic Data Download
    National base map data.
  • Geospatial One Stop
    Maps, data, and services to find geospatial data and learn about geospatial projects.
  • GISDATA Map Studio
    View and download geospatial data specially prepared for seamless access and delivery.
  • National Geospatial Program
    USGS coordination activities for geospatial production and services. Promotes consistent and accurate geographic data creation.
  • National Atlas
    Geographic information, map layers, and map products from more than 20 Federal organizations in the form of electronic maps and services.
  • Open Geospatial Consortium
    A non-profit international organization that is leading the development of standards for geospatial and location-based services.
  • The National Map
    View and download nationally consistent datasets.
  • The National Map seamless data
    View and download geospatial data. Includes orthoimagery (aerial photographs), elevation, geographic names, hydrography, boundaries, transportation, structures, and land cover.

Water Themes from Other Agencies

  • Flood maps
    Online access, ordering and pricing information for Federal Emergency Management Agency (FEMA) flood maps.
  • National Wetlands Inventory
    Map information and data for U.S. Fish and Wildlife Service wetland maps.
  • National Weather Service
    Access to National Weather Service River Forecast and Warning Services
  • National Hydrologic Warning Council
    A non-profit organization dedicated to assisting emergency and environmental management officials by providing expert advice on the use of real-time, high quality hydrologic information from automated remote data systems, with the goals of protecting lives, property, and the environment
  • Storm prediction center
    National Weather Service (NOAA)
  • MyEnvironment
    Links Federal, State and local partners' statistical data with environmental data (EPA).

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Page Last Modified: Monday, 08-Aug-2011 14:50:52 EDT