Yellowstone River Basin

Yellowstone Impact Study Prepared for the Old West Regional Commission, July 1977

State hydrologists conducting studies on Yellowstone River
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The Yellowstone Impact Study, conducted by the Water Resources Division of the Montana Department of Natural Resources and Conservation and financed by the Old West Regional Commission, was designed to evaluate the potential physical, biological and water use impacts of water withdrawals and water development on the middle and lower reaches of the Yellowsone River Basin in Montana. The study's plan of operation was to project three possible levels of future agricultural, industrual and municipal development in the Yellowstone Basin and the streamflow depletions associated with that development. Impacts on river morphology and water quality were then assessed and finally the impacts of altered streamflow, morphology and water quality on such factors as migratory birds, furbearers, recreation and existing water users were analyzed.

The study began in the fall of 1974. By its conclusion in December of 1976, the information generated by the study had already been used for a number of moratorium-related projects — the EIS on reservations of water in the Yellowstone Basin, for example (Montana DNRC 1976). The study resulted in a final report summarizing all aspects of the study and in eleven specialized technical reports:

Report No. 1 Future Development Projections and Hydrologic Modeling in the Yellowstone River Basin, Montana
   
Report No. 2 The Effect of Altered Streamflow on the Hydrology and Geomorphology of the Yellowstone River Basin, Montana
   
Report No. 3 The Effect of Altered Streamflow on the Water Quality of the Yellowstone River Basin, Montana
   
Report No. 4 The Adequacy of Montana's Regulatory Framework for Water Quality Control
   
Report No. 5 Aquatic Invertebrates of the Yellowstone River Basin, Montana
   
Report No. 6 The Effect of Altered Streamflow on Furbearing Mammals of the Yellowstone River Basin, Montana
   
Report No. 7 The Effect of Altered Streamflow on Migratory Birds of the Yellowstone River Basin, Montana
   
Report No. 8 The Effect of Altered Streamflow on Fish of the Yellowstone and Tongue Rivers, Montana
   
Report No. 9 The Effect of Altered Streamflow on Existing Municipal and Agricultural Users of the Yellowstone River Basin, Montana
   
Report No. 10 The Effect of Altered Streamflow on Water-Based Recreation in the Yellowsone River Basin, Montana
   
Report No. 11 The Economics of Altered Streamflowin the Yellowstone River Basin, Montana

Final Order of the Board of Natural Resources and Conservation Establishing Water Reservations, 1979

Collecting sediment data along the Yellowstone by Carter's Bridge
Chuck Dalby

Yellowstone River Basin Map - USGS
Table of Contents
Municipal Reservations
Irrigation Reservations
Multipurpose Reservations
Instream Reservations
Findings of Fact and Conclusions of Law -

 

City of Livingston
City of Big Timber
City of Columbus
City of Laurel
City of Billings
Miles City
City of Glendive
Town of Broadus
Park Conservation District
Sweet Grass CD
Stillwater CD
Carbon CD
Yellowstone CD
Big Horn CD
Treasure CD
Rosebud CD
North Custer CD
Powder River CD
Prairie CD
Dawson CD
Richland CD
Little Beaver CD
Buffalo Rapids Project
Dept of State Lands (9931-r)
Dept of State Lands (9933-r)
Dept of State Lands (9934-r)
Bureau of Land Mgmt. (12334-01-r)
Bureau of Land Mgmt. (12334-02-r)
Dept. of Natural Resources
Bureau of Reclamation (12330-r42KJ)
Bureau of Reclamation (12332-r42K)
Bureau of Reclamation (12331-r43Q)
Fish and Game Commission
Dept. of Health and Environmental Sciences
North Custer CD (Instream) (12334-03-r)
Bureau of Land Mgmt. (12334-03-r)
Huntley Project
Bureau of Reclamation (12333-r43P)
Bureau of Land Mgmt. (Instream) (12334-r)
Order Modifying Reservation

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Contact

Dept. of Natural Resources & Conservation
1625 Eleventh Ave.
Helena, MT 59601
Phone: (406) 444-2074
Fax: (406) 444-2684