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  • For current updates on Hebgen Lake elevations, click here.
  • For a news release and photos of the work at Hebgen, click here.

Hebgen Lake

South of Madison Dam, just north of the Idaho border near Yellowstone Park, is PPL Montana’s Hebgen Lake.

Hebgen Lake is used to store water from a 905-square-mile drainage area at the headwaters of the Madison-Missouri river system, home to eight PPL Montana hydroelectric plants — Black Eagle, Cochrane, Hauser, Holter, Madison, Morony, Rainbow and Ryan. Hebgen is used to regulate the flow of water into the Madison-Missouri system.

With the Madison as its main feeder, Hebgen Lake is about 15 miles long and on its southern end measures up to four miles at its widest point. A man-made lake retained by an earth-fill dam, Hebgen has been called the premier still-water fishing lake in Montana.

From 2003 to 2007, PPL Montana contributed more than $275,000 to improve public boat ramps and docks at Rainbow Point and Lonesomehurst on Hebgen Lake, and developed day-use areas at Hebgen Dam and Fisherman’s Point. The company continues to contribute $10,000 annually toward operation and maintenance of the day-use areas.

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