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.