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about 375 miles

Powder River

A prairie river that flows north from Kaycee, Wyoming along the east side of the Bighorns into Montana, picks up the Little Powder near Broadus, and meets the Yellowstone below Miles City.

N100 mi
Course of the river, simplified. Map data from Natural Earth (public domain).

Weather at the Powder River (National Weather Service) ↗

River facts

LengthAbout 375 miles
SourceForks meet near Kaycee, east of the Bighorn Mountains, Wyoming
MouthYellowstone River near Terry, Montana
StateWyoming

Boat ramps, launches and bait shops

Detailed ramp, bait shop and lock-and-dam listings for the Powder 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:

Facts from Powder River (Wikipedia) ↗

← Wyoming rivers · All rivers

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.