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Big Hole River

Boat Ramps
20
Access Points
42
Species
10

The Big Hole River flows for approximately 155 miles through southwestern Montana, starting at Skinner Lake in the Beaverhead Mountains near the Idaho border and continuing to its confluence with the Jefferson River at Twin Bridges. This free-flowing waterway winds through diverse landscapes including high mountain meadows, narrow canyons, and broad cottonwood valleys. As one of Montana's premier blue-ribbon trout fisheries, the river is renowned for its exceptional habitat that supports abundant aquatic insect populations leading to prolific hatches and thriving fish populations. The Big Hole River is a freestone river with no dams controlling its flow, meaning water levels and clarity vary seasonally with snowmelt, rainfall, and irrigation demands. The river's natural beauty, diverse fishing opportunities, and relatively manageable fishing pressure make it a cherished destination for anglers seeking an authentic Montana fly fishing experience.


Species & education

Learn what type of fish are at Big Hole River and what's needed to catch them.

Fishing spots, boat ramps & amenities

Learn how to get on Big Hole River. Uncover great fishing access points, boat ramps, and all the facilities you need for an unforgettable day on the water. Some locations shown may border or include private property. Always check property boundaries and applicable regulations before visiting. onWater's Public & Private Land layer can help you plan your access with confidence.

Know where you can legally fish on Big Hole River

See public and private land boundaries along the water, turn on private parcels with owner details to know where permission is required, and find land-trust parcels that offer permitted fishing access.

Montana licenses and regulations

Montana Boating Regulations

When using any type of watercraft to access a body of water, it is important to follow all federal, state, and local rules and regulations. These rules and regulations include boat permitting and licensing, invasive species inspections and stamps, life jacket and PFD rules, motor size and horsepower restrictions, noise limitations, restrictions on personal watercraft, and many more. Visit the web link below for the most current rules and regulations for this body of water.

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Montana Fishing License

All anglers 12 and over must possess a license.

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Montana Fishing Regulations

This river has a variety of species and regulations, including potential floating and/or watercraft restrictions. Because this river is specially managed for species, seasons, angling methods, and watercraft, it is strongly encouraged you check all federal, state, and local regulations before fishing. Visit any of the links below, inquire locally, or contact a local fly shop to learn current regulations and restrictions.

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Montana Stream Access Laws

Under the Montana Stream Access Law, the public may use rivers and streams for recreational purposes up to the ordinary high water marks. Although the law gives recreationists the right to use rivers and streams for water-related recreation, it does not give them the right to enter private lands bordering those streams or to cross private lands to gain access to streams without landowner permission. Montana's stream access law ensures public access to surface waters by public bridge or county road right-of-way. The width of a public bridge or public road right-of-way easement is the same as the public highway to which it is attached.

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Take Big Hole River with you

The onWater Fish app keeps this water's access points, species and conditions in your pocket, with the tools you use once you're there.

  • Use the map without signal

    Download the map around Big Hole River to use it offline when coverage drops.

  • Log your catches here

    Keep a private fishing journal for Big Hole River to find where and when fish are biting for you.

Get the onWater Fish app

Free on iOS and Android

Water and weather conditions (10 day forecast)

See the best times to fish Big Hole River and check the forecast before you go.

Big Hole River at Maiden Rock nr Divide MT

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