The Yellowstone River Basin is one of the four Montana Water Supply Initiative planning basins, and includes such major tributaries as the Bighorn, Tongue, and Powder rivers. Available below are documents relating to the Yellowstone River Basin through the two year MWSI process as well as other technical reports and documents that address water resource issues in the Yellowstone RIver Basin.
If you have questions about water planning in the Yellowstone River Basin please contact Sara Meloy at 444-4247.
View Detailed Basin Map
View the Report - Yellowstone River Basin Water Plan – 2014
Basin Water Plan Appendices
Appendix A - Yellowstone Basin Planning Methodology
Appendix E - Yellowstone River Basin Water Quality
Appendix G - Past Efforts to Estimate Future Demand
Appendix H - Potential Effects of Climate Change on Future Water Supplies and Demands
Yellowstone Basin Reports and Technical Information
Surface Water Information
Ground Water Information