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342 miles

Musselshell River

Rising between the Little Belt and Crazy mountains, the Musselshell flows east through central Montana past Harlowton and Roundup, then bends north after Melstone to reach Fort Peck Reservoir.

N50 mi
Course of the river, simplified. Map data from Natural Earth (public domain).

Weather at the Musselshell River (National Weather Service) ↗

River facts

Length342 miles
SourceNorth and South Fork confluence near Martinsdale, Meagher County, Montana
MouthMissouri River at UL Bend, head of Fort Peck Reservoir
StateMontana

Boat ramps, launches and bait shops

Detailed ramp, bait shop and lock-and-dam listings for the Musselshell River are coming soon. Until then, these searches open Google Maps along the river:

Fishing regulations

Check the state agency for river-specific rules, seasons and limits before you fish:

Lakes on or near the Musselshell River

Lakes in our guide on or near this river:

Facts from Musselshell River (Wikipedia) ↗

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View on interactive map

Zoom and pan on a street, satellite or terrain map to follow the river past roads and towns. Boat ramps, bait shops and locks will be added to this map.