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U.S. Geological Survey

Groundwater and Streamflow Information Program

Federal Priorities Streamgages (FPS) Mapper

This mapper depicts the location of U.S. Geological Survey (USGS) Federal Priorities Streamgages (FPS). Data and information for individual FPS can be found by selecting the associated state in the drop-down menu to the left of the map and browsing the table that appears below. FPS are monitoring stations that track the amount of water in streams and rivers across the Nation and that address one or more of the following Federal information needs:

  • forecasting floods, droughts and other streamflow;
  • supporting water-quality assessments of major rivers and estuaries;
  • supporting interstate and international compacts, court decrees, treaties and other border water agreements;
  • tracking streamflow in major rivers and contributions from key basins to the next downstream basin, estuary, ocean or the Great Lakes; and
  • describing long-term trends in streamflow at sentinel sites that typify major ecoregions and river basins, including trends related to population, land use, water use and climate.

The FPS Network was conceived in 1999 to serve, in part, as a “backbone” for the greater USGS Streamgaging Network. The original FPS Network design included 4,300 then active, previously discontinued, or proposed new gages that were strategically positioned across the country. At present (2018), more than 4,700 locations meet the criteria for inclusion in the FPS network, but only about 3,600 FPS are active because of funding limitations. The active FPS are supported through a combination of Federal and partner funding—less than one-quarter are fully funded by the USGS.

For More Information

Mark Landers, National Streamgage Network Coordinator (678)-924-6616

Contact us using our online form for feedback and questions.

For general USGS questions, contact Ask USGS online or call 1-888-ASK-USGS (1-888-275-8747).

For More Information

, FPS Coordinator for the