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Wyoming River Basin Plans


Basin Map








The Wyoming State Geological Survey’s (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 (WWDO). These reports are available as free downloads on the WWDO 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 was for the Bear River Basin (Forsgren and Associates, 2001) and 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 WSGS, the WWDO, and the U.S. Geological Survey. Additional contributors include the Wyoming State Engineer’s Office, the Water Resources Data System at the University of Wyoming, the Wyoming Department of Environmental Quality, and the Wyoming Oil and Gas Conservation Commission. 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.

Downloadable files containing this report and previous memoranda for the Bear River Basin are available online at the WWDO 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 WSGS, U.S. Geological Survey, Wyoming Water Science Center, and Water Resources Data System at the University of Wyoming.

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 Available Groundwater Determination Technical Memorandum (Hahn and Jessen, 2001), and this memorandum are available online at the WWDO Green River Basin Water Plan website.








Platte River Basin

Platte River Between 2001 and 2006, the Wyoming Water Development Commission 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, dated May 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 more 40 percent of its population. This publication represents an intensive collaborative effort among water resource professionals from the WSGS, the WWDO, and the U.S. Geological Survey. Additional contributors include the Wyoming State Engineer’s Office, Water Resources Data System at the University of Wyoming, the Wyoming Department of Environmental Quality, and the Wyoming Oil and Gas Conservation Commission. 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 downloadable files containing the water plan, the Hahn and Jessen report, and this memorandum are available online at the WWDO 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.

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 WWDO 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 WSGS, U.S. Geological Survey, Wyoming Water Science Center, and the Water Resources Data System at the University of Wyoming.

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 Available Groundwater Determination Technical Memorandum (Hahn and Jessen, 2001), and this memorandum are available online at the WWDO Wind/Bighorn River Basin Water Plan website.












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