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Dam Restrictions

The following dams are closed to all boating, sailing, floating, and swimming or closed to all public access as marked by boat restraining systems or signs.

Name of Dam Restriction
Black Eagle Dam 500' above dam to 100' below the waterfalls. Closed to all public access below ordinary high-water mark from the dam to 100' below the waterfalls.
Canyon Ferry Dam The area immediately above and below the dam is closed to all watercraft as posted or marked by boat restraining systems,
Cochrane Dam 500' above the dam to 500' below the dam.
Cochrane Reservoir Closed to boating, sailing, floating, swimming, personal watercraft use, and waterfowl hunting.
Flint Creek Dam 100' above the dam to 150' below the dam.
Hauser Dam 250' above the dam to 600' below the dam. Closed to all public access below ordinary high-water mark from the dam to 100' below the dam from December 1 to April 1.
Hebgen Dam 100' above the dam to 100' below the outlet works.
Holter Dam 150' above the dam to 900' below the dam.
Kerr Dam The area immediately above the dam is closed to all watercraft as posted or marked.
Madison Dam 600' above the dam to 700' below the dam.
Morony Dam 500' above the dam to 500' below the dam.
Mornoy Reservoir Closed to all boating, sailing, floating, swimming, personal watercraft use, and waterfowl hunting.
Mystic Dam 100' above the dam to the dam. Closed to all public access below ordinary high-water mark from the south side of West Rosebud Creek from the powerhouse to the USGS concrete weir.
Rainbow Dam 600' above the dam to 100' below the dam. Closed to all public access below ordinary high-water mark from the dam to 4,400' below the dam to the east end of the Tailrace Island adjacent to the Rainbow dam powerhouse.
Ryan Dam 500' above the dam to 100' below the waterfalls. Closed to all public access below ordinary high-water mark from the dam to the east end of Ryan Island.
Ryan Reservoir Closed to all boating, sailing, floating, swimming, personal watercraft use, and waterfowl hunting.
Thompson Falls Dam 1,020' above the dam to 500' below the dam.
Toston Dam Between the dam and 300' downstream and the reservoir between the dam and the boat barrier.
W. Rosebud Dam 100' above the dam to the dam.