East Branch Penobscot River

From Wikipedia, the free encyclopedia
Jump to: navigation, search
East Branch Penobscot River
East Branch Penobscot River, northeast of Millinocket, Maine.
Country United States
Basin features
Main source Maine
1,000 feet (300 m)
River mouth Penobscot River
240 feet (70 m)
45°36′32″N 68°32′02″W / 45.609°N 68.534°W / 45.609; -68.534Coordinates: 45°36′32″N 68°32′02″W / 45.609°N 68.534°W / 45.609; -68.534
Physical characteristics
Length 75 miles (121 km)

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.


From its source (46°16′01″N 69°12′08″W / 46.2670°N 69.2023°W / 46.2670; -69.2023 (East Branch Penobscot River source)) 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[edit]

Grand Lake Matagamon
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]

See also[edit]


  1. ^ a b c U.S. Geological Survey. National Hydrography Dataset high-resolution flowline data. The National Map Archived 2012-04-05 at WebCite, accessed June 22, 2011
  2. ^ The Maine Atlas and Gazetteer (Thirteenth ed.). Freeport, Maine: DeLorme Mapping Company. 1988. pp. 51&57. ISBN 0-89933-035-5. 
  3. ^ 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. 
  4. ^ a b "Matagamon Lake" (PDF). Maine Department of Inland Fisheries and Game. State of Maine. Retrieved 4 May 2016. 
  5. ^ U.S. Geological Survey Geographic Names Information System: Grand Lake Matagamon