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418 miles

St. John River

Rising in Maine's north woods, the St. John forms part of the Maine-New Brunswick border past Fort Kent, Madawaska and Van Buren, then crosses New Brunswick through Edmundston and Fredericton to the Bay of Fundy.

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

Weather at the St. John River (National Weather Service) ↗

River facts

Length418 miles
SourceSaint John Ponds, Somerset County, Maine
MouthBay of Fundy at Saint John, New Brunswick
StateMaine

Grand Falls, Beechwood and Mactaquac are hydroelectric dams on the river.

Boat ramps, launches and bait shops

Detailed ramp, bait shop and lock-and-dam listings for the St. John 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 St. John 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.