Fort Towson

The South Branch Blackwater River is an 8.9-mile-long (14.3 km)^[1] river in Aroostook County, Maine. From its source (46°25′23″N 68°08′31″W / 46.4230°N 68.1420°W / 46.4230; -68.1420) in Maine Township 9, Range 3, WELS, the stream runs northwest to its confluence with the North Branch to form the Blackwater River in Squa Pan Township (T. 10, R. 4, WELS). Via the Blackwater River, St. Croix Stream, and the Aroostook River, the South Branch is part of the Saint John River watershed.

See also

List of rivers of Maine

References

^ U.S. Geological Survey. National Hydrography Dataset high-resolution flowline data. The National Map, accessed June 22, 2011

"South Branch Blackwater River". Geographic Names Information System. United States Geological Survey, United States Department of the Interior. 30 September 1980. Retrieved 2009-10-24.
Maine Streamflow Data from the USGS
Maine Watershed Data From Environmental Protection Agency

46°29′13″N 68°15′08″W / 46.4870°N 68.2523°W / 46.4870; -68.2523

Saint John River Watershed

Tributaries

Lakes

Towns

Landmarks

Rivers of Maine by drainage system

Passamaquoddy Bay

Saint John River Watershed

Fore River Watershed	Fore River Long Creek Stroudwater River South Branch Stroudwater River
Presumpscot River Watershed	Bear River Chute River Crooked River East Branch Piscataqua River Little River Muddy River North Branch Little River Northwest River Piscataqua River Pleasant River Presumpscot River Songo River Sticky River Tenny River
Others	Cousins River Harraseeket River Little River New Meadows River Royal River

Blue Hill Bay (Union River Watershed)	Bog River East Branch Union River Little Bog River Middle Branch Union River Union River West Branch Union River
Chandler Bay	Sandy River
Dennys Bay	Dennys River Hardscrabble River Orange River
Englishman Bay	Chandler River East Branch Chandler River Englishman River
Frenchman Bay	Jordan Stream Skillings River
Harrington Bay	Harrington River Mill River
Little River Watershed	Little River (Drakes Island) Merriland River
Machias Bay (Machias River Watershed)	Crooked River East Machias River Machias River Maine River Middle River West Branch Machias River
Mousam River Watershed	Littlefield River Middle Branch Mousam River Mousam River
Narraguagus Bay (Narraguagus River Watershed)	Little Narraguagus River Narraguagus River Spring River West Branch Narraguagus River (Cherryfield) West Branch Narraguagus River (Hancock County)
Pleasant Bay (Pleasant River Watershed)	Little River Pleasant River West Branch Pleasant River Western Little River
Piscataqua River Watershed	Great Works River Little River Neoutaquet River Piscataqua River Salmon Falls River
Sheepscot River Watershed	Back River Cross River Dyer River Marsh River Sasanoa River Sheepscot River West Branch Sheepscot River
Wohoa Bay	Indian River Southwest Branch Indian River West River
Others	Batson River Benjamin River Cape Neddick River Damariscotta River Johns River Jordan River Josias River Kennebunk River Little River (Boothbay) Little River (Georgetown) Little River (Goosefare Bay) Little River (York) Morse River Ogunquit River Pemaquid River Sprague River Webhannet River York River

Merrymeeting Bay

Androscoggin River Watershed

Kennebec River Watershed

Saint George River Watershed	Back River Dead River East Branch Oyster River Mill River Oyster River Saint George River West Branch Oyster River
Others	Back River (Medomak) Back River (Meduncook) Goose River Medomak River Meduncook River

Penobscot River Watershed

Others

Saco River Watershed	Charles River Cold River Hancock Brook Kezar River Little Cold River Little Ossipee River Little River Little Saco River Mad River Middle Branch Mad River Old Course Saco River Ossipee River Saco River Shepards River South Branch Mad River South River Tenmile River West Branch Tenmile River
Others	Dunstan River Libby River Nonesuch River Scarborough River Spurwink River

source: https://en.wikipedia.org/wiki/South_Branch_Blackwater_River_(Maine)