Hydropower
Nearly 60% of the energy we supply in Montana comes from carbon-free sources, thanks in large part to our hydroelectric facilities.
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Historic American Engineering Record (HAER) Documentation
Hydroelectric Facilities:
Holter
- Holter Hydroelectric Facility, End of Holter Dam Road, Wolf Creek, Lewis and Clark County, MT
- Holter Hydroelectric Facility, House No. 1, End of Holter Dam Road, Wolf Creek, Lewis and Clark County, MT
- Holter Hydroelectric Facility, House No. 2, End of Holter Dam Road, Wolf Creek, Lewis and Clark County, MT
- Holter Hydroelectric Facility, House No. 4, End of Holter Dam Road, Wolf Creek, Lewis and Clark County, MT
- Holter Hydroelectric Facility, House No. 7, End of Holter Dam Road, Wolf Creek, Lewis and Clark County, MT
- Holter Hydroelectric Facility, House No. 8, End of Holter Dam Road, Wolf Creek, Lewis and Clark County, MT
- Holter Hydroelectric Facility, Mechanic's Garage, End of Holter Dam Road, Wolf Creek, Lewis and Clark County, MT
- Holter Hydroelectric Facility, Dam & Power House, End of Holter Dam Road, Wolf Creek, Lewis and Clark County, MT
- Holter Hydroelectric Facility, Three-Car Garage, End of Holter Dam Road, Wolf Creek, Lewis and Clark County, MT
- Holter Hydroelectric Facility, Four-Car Garage, End of Holter Dam Road, Wolf Creek, Lewis and Clark County, MT
Mystic Lake
- Mystic Lake Hydroelectric Facility, Hoist House, On west slope of West Rosebud Creek, 1 3/4 miles northeast of Mystic Lake Dam, Fishtail, Stillwater County, MT
- Mystic Lake Hydroelectric Facility, Powerhouse, Along West Rosebud Creek, 1 3/4 miles northeast of Mystic Lake Dam, Fishtail, Stillwater County, MT
- Mystic Lake Hydroelectric Facility, Electric Transmission A Line, Along West Rosebud Creek, Fishtail, Stillwater County, MT
Rainbow
- Rainbow Hydroelectric Facility, On north bank of Missouri River 2 miles Northeast of Great Falls, & end of Rainbow Dam Road, Great Falls, Cascade County, MT
- Rainbow Hydroelectric Facility, Foreman's House, On north bank of Missouri River 2 miles Northeast of Great Falls, & end of Rainbow Dam Road, Great Falls, Cascade County, MT
- Rainbow Hydroelectric Facility, Two Stall Garage, On north bank of Missouri River 2 miles Northeast of Great Falls, & end of Rainbow Dam Road, Great Falls, Cascade County, MT
- Rainbow Hydroelectric Facility, Three Stall Garage, On north bank of Missouri River 2 miles Northeast of Great Falls, & end of Rainbow Dam Road, Great Falls, Cascade County, MT
- Rainbow Hydroelectric Facility, Ten Stall Garage, On north bank of Missouri River 2 miles Northeast of Great Falls, & end of Rainbow Dam Road, Great Falls, Cascade County, MT
- Rainbow Hydroelectric Facility, House No. 16, On north bank of Missouri River 2 miles Northeast of Great Falls, & end of Rainbow Dam Road, Great Falls, Cascade County, MT
- Rainbow Hydroelectric Facility, Tool House, On north bank of Missouri River 2 miles Northeast of Great Falls, & end of Rainbow Dam Road, Great Falls, Cascade County, MT
- Rainbow Hydroelectric Facility, Clubhouse, On north bank of Missouri River 2 miles Northeast of Great Falls, & end of Rainbow Dam Road, Great Falls, Cascade County, MT
- Rainbow Hydroelectric Facility, Arbor, On north bank of Missouri River 2 miles Northeast of Great Falls, & end of Rainbow Dam Road, Great Falls, Cascade County, MT
- Rainbow Hydroelectric Facility, Fountain, On north bank of Missouri River 2 miles Northeast of Great Falls, & end of Rainbow Dam Road, Great Falls, Cascade County, MT
- Rainbow Hydroelectric Facility, Swimming Pool, On north bank of Missouri River 2 miles Northeast of Great Falls, & end of Rainbow Dam Road, Great Falls, Cascade County, MT
- Rainbow Hydroelectric Facility, Stone Culvert, On Swimming Pool Road, about 600 feet west-northwest of Powerhouse, Great Falls, Cascade County, MT
- Rainbow Hydroelectric Facility, Plank Bridge, On Swimming Pool Road, about 575 feet west of Powerhouse, Great Falls, Cascade County, MT
- Rainbow Hydroelectric Facility, Terraced Gardens, About 850 feet southwest of Powerhouse, Great Falls, Cascade County, MT
- Rainbow Hydroelectric Facility, Powder Magazine, About 475 feet northeast of Powerhouse, Great Falls, Cascade County, MT
Ryan
- Ryan Hydroelectric Facility, Ryan-to-Rainbow 100 kV Transmission Line, West bank of Missouri River, northeast of Great Falls, Great Falls, Cascade County, MT
- Ryan Hydroelectric Facility, Powerhouse, On Missouri River, northeast of Great Falls, Great Falls, Cascade County, MT
- Ryan Hydroelectric Facility, Water Tank, About 140 feet north of Clubhouse, Great Falls, Cascade County, MT
Thompson Falls
- Thompson Falls Hydroelectric Project, Main Channel Dam, Clark Fork River, Thompson Falls, Sanders County, MT
- Thompson Falls Hydroelectric Project, Warming Hut, On east slope of Main Island, about 35 feet south-southwest of Main Channel Dam, Thompson Falls, Sanders County, MT
- Thompson Falls Hydroelectric Project, Power Foreman's Bungalow, On island between Forebay Channel & ClarkFord River, Thompson Falls, Sanders County, MT
- Thompson Falls Hydroelectric Project, Chicken House, On island between Forebay Channel & ClarkFord River, Thompson Falls, Sanders County, MT
- Thompson Falls Hydroelectric Project, Garage, On road to powerhouse, Thompson Falls, Sanders County, MT