Following is a list of dams and reservoirs in Montana .
All major dams are linked below. The National Inventory of Dams defines any "major dam" as being 50 feet (15 m) tall with a storage capacity of at least 5,000 acre-feet (6,200,000 m 3 ) , or of any height with a storage capacity of 25,000 acre-feet (31,000,000 m 3 ) .[1]
Fort Peck Dam spillway under construction
Holter Lake
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Black Eagle Dam , unnamed reservoir, NorthWestern Energy
Box Elder Creek Dam , Boxelder Lake, City of Plentywood
Bynum Reservoir Dam , Bynum Reservoir , Teton Cooperative Reservoir Company
Canyon Ferry Dam , Canyon Ferry Lake , United States Bureau of Reclamation
Clark Canyon Dam , Clark Canyon Reservoir, USBR
Cochrane Dam , unnamed reservoir, NorthWestern Energy
Como Dam , Como Lake, USBR
Cooney Dam , Cooney Reservoir , State of Montana
Fort Peck Dam , Fort Peck Lake , United States Army Corps of Engineers
Fresno Dam , Fresno Reservoir, USBR
Gibson Dam , Gibson Reservoir , USBR
Hauser Dam , Hauser Lake, NorthWestern Energy
Hebgen Dam , Hebgen Lake , NorthWestern Energy
Holter Dam , Holter Lake, NorthWestern Energy
Hungry Horse Dam , Hungry Horse Reservoir, USBR
Kicking Horse Dam , Kicking Horse Reservoir , Bureau of Indian Affairs
Libby Dam , Lake Koocanusa , USACE
Lower Two Medicine Dam , Lower Two Medicine Lake , Lake Elwell , Bureau of Indian Affairs
Madison Dam , Ennis Lake , NorthWestern Energy
Milltown Dam (removed)
Morony Dam , unnamed reservoir, NorthWestern Energy
Mystic Lake Dam, Mystic Lake, NorthWestern Energy
Noxon Rapids Dam , Noxon Reservoir, Avista
Rainbow Dam , unnamed reservoir, NorthWestern Energy
Ryan Dam , unnamed reservoir, NorthWestern Energy
Lake Sherburne Dam , Lake Sherburne , USBR
SKQ Dam , Flathead Lake , Energy Keepers Inc.
Swift Dam , Swift Reservoir, Pondera County Canal and Reservoir Company
Thompson Falls Dam , unnamed reservoir, NorthWestern Energy
Tiber Dam , Lake Elwell , USBR
Tongue River Dam , Tongue River Reservoir, Montana Department of Natural Resources and Conservation
Toston Dam , Toston Reservoir, Montana Department of Natural Resources
Willow Creek Dam , Willow Creek Reservoir, USBR
Yellowtail Dam , Bighorn Lake , USBR