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2,341 miles

Missouri River

The Missouri is the nation's longest river. It rises in the Centennial Mountains of southwestern Montana and flows east and south into the Mississippi north of St. Louis.

N50 mi
Course of the river, simplified. Orange dots are boat ramps and launches, blue squares are bait shops. Map data © OpenStreetMap contributors.
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River facts

Length2,341 miles
SourceEastern Centennial Mountains, southwestern Montana
MouthMississippi River north of St. Louis, Missouri

Its reservoirs include the largest, second-largest and fourth-largest artificial lakes in the United States by surface area: Lake Sakakawea, Lake Oahe and Fort Peck Lake. Upstream, the river passes through Canyon Ferry Lake and then the canyons and badlands known as the Missouri Breaks.

Listed fish are the species named for the river on its Wikipedia page. Check the Montana Fish, Wildlife & Parks for river-specific regulations before you fish.

Boat ramps and launches

Orange dots on the map. Tap a name to open it in Google Maps. Public ramps and launches along the Missouri River in Pennsylvania, from OpenStreetMap. The list may be incomplete, so check the Pennsylvania Fish and Boat Commission for current access.

Closest bait shops

Blue squares on the map. Tap a name to open the shop's website, or its location in Google Maps if it has none listed. Bait and tackle shops closest to the river's ramps, from OpenStreetMap. Call ahead for hours and live bait.

Lakes and flowages on the Missouri River

Lakes in our guide on or connected to this river:

Source: Missouri 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. Red pins are boat ramps and launches; blue pins are bait shops. Tap a pin for directions.