Little Missouri River
Starting west of Devils Tower, this prairie river clips southeast Montana and northwest South Dakota, then winds north through the North Dakota badlands, Little Missouri National Grassland and all three units of Theodore Roosevelt National Park before ending in a long arm of Lake Sakakawea.
Course of the river, simplified. Map data from Natural Earth (public domain).
Weather at the Little Missouri River (National Weather Service) ↗
River facts
| Length | 560 miles |
|---|---|
| Source | Flatiron Butte near Oshoto, Crook County, Wyoming |
| Mouth | Missouri River at Lake Sakakawea, northeast of Killdeer, North Dakota |
| States | North Dakota, South Dakota |
Boat ramps, launches and bait shops
Detailed ramp, bait shop and lock-and-dam listings for the Little Missouri River are coming soon. Until then, these searches open Google Maps along the river:
- Boat ramps on the Little Missouri River in North Dakota ↗ · Bait shops near the Little Missouri River in North Dakota ↗
- Boat ramps on the Little Missouri River in South Dakota ↗ · Bait shops near the Little Missouri River in South Dakota ↗
Fishing regulations
Check the state agency for river-specific rules, seasons and limits before you fish:
- North Dakota: North Dakota Game and Fish Department ↗
- South Dakota: South Dakota Department of Game, Fish and Parks ↗
Facts from Little Missouri River (Wikipedia) ↗