East Branch Penobscot River

Coordinates: 45°36′32″N 68°32′02″W / 45.60889°N 68.53389°W

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East Branch Penobscot River
East Branch Penobscot River, northeast of Millinocket, Maine.

Location
Country	United States
Physical characteristics

Source
• location	Maine
• elevation	1,000 feet (300 m)

Mouth
• location	Penobscot River
• coordinates	45°36′32″N 68°32′02″W / 45.60889°N 68.53389°W / 45.60889; -68.53389
• elevation	240 feet (70 m)
Length	75 miles (121 km)
Basin features
Tributaries
• left	Seboeis River

The East Branch Penobscot River is a 75.3-mile-long (121.2 km)^[1] tributary of Maine's Penobscot River. It flows in Piscataquis County and Penobscot County.

Course

From its source (46°16′01″N 69°12′08″W / 46.2670°N 69.2023°W / 46.2670; -69.2023) in Maine Township 7, Range 11, WELS, in Piscataquis County, the river runs 17 miles (27 km)^[1] southeast through the North Maine Woods to Grand Lake Matagamon reservoir, in the northeast corner of Baxter State Park. From Grand Lake Dam, the river runs 48 miles (77 km)^[1] south to its confluence with the West Branch Penobscot River in Medway, Penobscot County.

Matagamon Lake

Grand Lake Matagamon
Grand Lake Matagamon
Coordinates	46°10′25″N 68°50′33″W / 46.17361°N 68.84250°W / 46.17361; -68.84250

Max. length	8 mi (13 km)^[2]
Surface area	4,868 acres (1,970 ha)^[3]
Max. depth	95 feet (29 m)^[4]
Water volume	80,878 acre⋅ft (99,762,000 m³)^[3]
Surface elevation	653 ft (199 m)^[5]

Grand Lake Matagamon or Matagamon Lake is a reservoir on the East Branch, impounded by Grand Lake Dam. The dam was built at the outlet of First Lake, and flooded vast expanses of low-lying land extending upstream to include Second Lake.

The shallow water habitat created by the dam is more suitable for yellow perch, fallfish, and longnose sucker rather than for trout.^[4]

References

^ ^a ^b ^c U.S. Geological Survey. National Hydrography Dataset high-resolution flowline data. The National Map Archived 2012-03-29 at the Wayback Machine, accessed June 22, 2011
^ The Maine Atlas and Gazetteer (Thirteenth ed.). Freeport, Maine: DeLorme Mapping Company. 1988. pp. 51&57. ISBN 0-89933-035-5.
^ ^a ^b Maine Depts. of Environmental Protection and Inland Fisheries & Wildlife (2005-08-04). "Maine Lakes: Morphometry and Geographic Information". Senator George J. Mitchell Center for Environmental and Watershed Research, The University of Maine. Archived from the original on 2006-09-03. Retrieved 2008-07-31.
^ ^a ^b "Matagamon Lake" (PDF). Maine Department of Inland Fisheries and Game. State of Maine. Archived from the original (PDF) on 1 February 2017. Retrieved 4 May 2016.
^ U.S. Geological Survey Geographic Names Information System: Grand Lake Matagamon

"East Branch Penobscot River". Geographic Names Information System. United States Geological Survey, United States Department of the Interior. 30 September 1980. Retrieved 2010-05-23.
Maine Streamflow Data from the USGS
Maine Watershed Data From Environmental Protection Agency

v t e Penobscot River Watershed
Tributaries	Dead River East Branch Mattawamkeag River East Branch Penobscot River East Branch Piscataquis River East Branch Pleasant River Kenduskeag Stream Little Seboeis River Mattawamkeag River Middle Branch Pleasant River Molunkus Stream Narramissic River North Branch Marsh River North Branch Penobscot River Orland River Passadumkeag River Piscataquis River Pleasant River Sebec River Seboeis River South Branch Marsh River South Branch Penobscot River Stillwater River West Branch Mattawamkeag River West Branch Penobscot River West Branch Piscataquis River West Branch Pleasant River
Lakes	Allagash Lake Canada Falls Lake Caucomgomoc Lake Chamberlain Lake Chesuncook Lake Cold Stream Pond Debsconeag Lakes Grand Lake Seboeis Jo-Mary Lakes Lobster Lake Lower Wilson Pond Matagamon Lake Mattawamkeag Lake Millinocket Lake Nahmakanta Lake Nicatous Lake Lake Onawa Pemadumcook Chain of Lakes Pleasant Lake Pushaw Lake Ragged Lake Rainbow Lake Schoodic Lake Sebec Lake Seboeis Lake Seboomook Lake South Twin Lake Telos Lake Toddy Pond Upper Wilson Pond
Towns	Abbot Bangor Bradley Brewer Brooks Brownville Bucksport Burlington Carmel Charleston Danforth Dover-Foxcroft East Millinocket Eddington Enfield Frankfort Guilford Hampden Haynesville Hermon Howland Hudson Island Falls Kenduskeag Kingman Lee Levant Lincoln Macwahoc Mattawamkeag Medway Milford Millinocket Milo Monson Oakfield Old Town Orland Orono Orrington Passadumkeag Patten Prospect Sangerville Sherman Smyrna Springfield Veazie Verona Winn Winterport Wytopitlock
Landmarks	Bangor and Aroostook Railroad Baxter State Park Fort Knox Gero Island Great Northern Paper Company Great Works Dam Hundred-Mile Wilderness Katahdin Iron Works Maine Central Railroad Monson Railroad Mount Katahdin North Maine Woods Orono Dam Peaks-Kenny State Park Penobscot Indian Island Reservation Penobscot Narrows Bridge and Observatory Ripogenus Gorge Stillwater Dam University of Maine Veazie Dam Waldo–Hancock Bridge

Rivers of Maine by drainage system

Bay of Fundy

Passamaquoddy Bay

Saint John River Watershed

Casco Bay

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

Gulf of Maine

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

Muscongus Bay

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 Bay

Penobscot River Watershed

Others

Saco Bay

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

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Course

Matagamon Lake

See also

References