Text Size  A  A   Twitter Facebook YouTube Instagram Sign Up For Email Updates

Wyoming River Basin Plans


Basin Map








The WSGS Wyoming River Basins Water Plan Updates, Level II Groundwater Studies, are individual basin studies intended for the state’s updated river basin plans, commissioned by the Wyoming Water Development Office. These reports are available as free downloads (not for sale) at the WWDC website under River Basin Planning.






Completed In Progress


Completed Completed









Bear River Basin

Bear River

Between 2001 and 2006 the Wyoming Water Development Commission (WWDC) completed individual water plans for each of Wyoming’s seven major river basins. The first water plan completed during that period, for the Bear River Basin (Forsgren and Associates, 2001) included an available groundwater determination in Technical Memorandum O. The 2014 Available Groundwater Determination presented in this report updates and expands the previous technical memorandum with a new compilation of information and represents the most current assessment of the groundwater resources of the Bear River Basin.

Bear River Basin Water Plan Update Groundwater Study

The Bear River Basin is an important river drainage in southwestern Wyoming. This publication represents an intensive collaborative effort among water resource professionals from the Wyoming State Geological Survey (WSGS), the Wyoming Water Development Office (WWDO) and the USGS. Additional contributors include the Wyoming State Engineer’s Office (SEO), the Water Resources Data System (WRDS) at the University of Wyoming, the Wyoming Department of Environmental Quality (WDEQ) and the Wyoming Oil and Gas Conservation Commission (WOGCC). The authors have worked to provide the people of Wyoming with the most current and complete compilation of groundwater information available in a format that is understandable to water professionals and citizens alike. Basic concepts of groundwater science are included in Chapter 5. The WSGS hopes that visitors to this site find the report both informative and useful.

Downloadable files containing this report and previous memoranda for the Bear River Basin are available online at the WWDC Bear River Basin Water Plan website.

Greater Green River Basin

Green River In 2007, the Wyoming Water and Development Commission funded the Green River Basin groundwater project in order to update the 2001 Green River Water Plan (States West Water Resources Corporation, 2001). The project was conducted by personnel at the Wyoming State Geological Survey (WSGS) in Laramie, the United State Geological Survey (USGS), Wyoming Water Science Center in Cheyenne, and the Water Resources Data System (WRDS) in Laramie.

This study updates, revises, and expands the groundwater report contained in the 2001 Green River Basin Water Plan as the Available Groundwater Determination Technical Memorandum, dated May 2006 (Trihydro Corporation, 2001).

A downloadable file containing the water plan, the Hahn and Jessen report and this memorandum is available online at the WWDC Green River Basin Water Plan website.





Platte River Basin

Platte River Between 2001 and 2006 the Wyoming Water Development Commission (WWDC) completed individual water plans for each of Wyoming’s seven major river basins. The last water plan completed during that period, for the Platte River Basin (Trihydro Corporation and others, 2006) included an available groundwater determination in Technical Memorandum 3.3 (Lidstone and Associates, 2005). The 2013 Available Groundwater Determination presented in this report updates and expands the previous technical memorandum with a new compilation of information and represents the most current assessment of the groundwater resources of the Platte River Basin.

This study updates, revises, and expands the groundwater report contained in the 2006 Platte River Basin Water Plan as the Available Groundwater Determination Technical Memorandum., data May 2006, 2006 (Hahn and Jessen, 2001).

Platte River Basin Water Plan Update Groundwater Study

The Platte River Basin is among the most important river drainages in Wyoming in that it covers one quarter of the state’s surface area and contains over 40 percent of its population. This publication represents an intensive collaborative effort among water resource professionals from the Wyoming State Geological Survey (WSGS), the Wyoming Water Development Office (WWDO) and the USGS. Additional contributors include the Wyoming State Engineer’s Office (SEO), the Water Resources Data System (WRDS) at the University of Wyoming, the Wyoming Department of Environmental Quality (WDEQ) and the Wyoming Oil and Gas Conservation Commission (WOGCC). The authors have worked to provide the people of Wyoming with the most current and complete compilation of groundwater information available in a format that is understandable to water professionals and citizens alike. Basic concepts of groundwater science are included in Chapter 5. The WSGS hopes that visitors to this site find the report both informative and useful.

The downloadable files containing the water plan, the Hahn and Jessen report and this memorandum are available online at the WWDC Platte River Water Basin Plan website.

Snake/Salt River Basins

Snake/Salt River The WSGS, in partnership with the U.S. Geological Survey, has completed its study of the Snake and Salt River basins, a project for the Wyoming Water Development Commission. The 424-page publication includes color graphics and foldouts. Geologists conducted a full assessment of the aquifers of the Snake and Salt River basins as well as a small tributary watershed in Idaho. They also estimated and mapped water-related information, and evaluated other related studies and groundwater models for the final published report.

The “Snake/Salt River Basin Water Plan, Available Groundwater Determination (2011-2014),” includes 424 pages with color graphics and foldouts. This study is part of an overall effort by the agency to assess groundwater resources in river basins throughout the state, a multi-year project funded by the Wyoming Water Development Commission (WWDC). The river basin plans are part of the WWDC’s efforts to develop and maintain state water plans for each basin.

With its headwaters in Wyoming, the Snake River is the largest tributary of the Columbia River, which ultimately empties into the Pacific Ocean. The Salt River, named for several exposed beds of salt and briny springs, drains Star Valley in Lincoln County in western Wyoming. Both the Salt and Snake Rivers enter the east end of Palisades Reservoir near Alpine, Wyoming.

The report is available online at the WWDC Snake/Salt River Water Basin Plan website.



Wind/Bighorn River Basin

Wind River In 2007, the Wyoming Water and Development Commission funded the Wind/Bighorn River Basin groundwater project in order to update the 2003 Wind/Bighorn River Basin Plan . The project was conducted by personnel at the Wyoming State Geological Survey (WSGS) in Laramie, the United State Geological Survey (USGS), Wyoming Water Science Center in Cheyenne, and the Water Resources Data System (WRDS) in Laramie.

This study updates, revises, and expands the groundwater report contained in the 2003 Wind/Bighorn River Basin as the Available Groundwater Determination Technical Memorandum, dated January 14, 2003 (Lidstone and Associates, 2003).

A downloadable file containing the water plan, the Hahn and Jessen report and this memorandum is available online at the WWDC Wind/Bighorn River Basin Water Plan website.









Contact:
Karl Taboga (307) 766-2286 Ext. 226