The Lower Missouri River Basin is the largest yet least populated of the four Montana Water Supply Initiative planning basins, and includes the Musselshell and Milk River basins, as well as Fort Peck Reservoir. Available below are documents relating to the Lower Missouri River Basin through the two year MWSI process as well as technical documents and reports that address water resource issues in the Lower Missouri River Basin.
If you have questions about water planning in the Lower Missouri Basin please contact Michael Downeyat 444-9748.

View Detailed Basin Map
View the Report - Lower Missouri River Basin Water Plan – 2014
Appendices - Lower Missouri Basin Water Plan
Appendix A - Lower Missouri River Basin Advisory Council Recommendation Development Report
Appendix B - Socioeconomic Portrait of the Lower Missouri River Basin
Appendix C - Methods for Estimating Water Use for the State Water Plan
Appendix D - Fish, Wildlife and Parks Instream Flow Reservations in the Lower Missouri River Basin
Lower Missouri Basin Reports and Technical Information
Surface Water Reports