South Branch Penobscot River
|South Branch Penobscot River|
|Progression||West Branch – Penobscot River|
|Basin countries||United States|
|Length||39 miles (63 km)|
|Source elevation||1,860 feet (570 m)|
|Mouth elevation||1,070 feet (330 m)|
The South Branch Penobscot River is a river in Somerset County, Maine. Its source, an unnamed lake, the north end of which at ( ) is about 1,000 feet (300 m) from the Canada – United States border in Sandy Bay (Maine Township 5, Range 3, NBKP). This section of the border runs along the height of land separating the watersheds of the Penobscot River and the Monument River, which feeds into the Saint Lawrence River.
The South Branch of the Penobscot River runs 39.0 miles (62.8 km) northeast through Canada Falls Lake to its drowned confluence with the North Branch of the Penobscot in Seboomook Lake in Pittston Academy Grant (T.2 R.4 NBKP). The two rivers combine to form the West Branch Penobscot River, which flows east from the outlet of Seboomook Lake.
- U.S. Geological Survey. National Hydrography Dataset high-resolution flowline data. The National Map, accessed June 22, 2011
- "South Branch Penobscot River". Geographic Names Information System, U.S. Geological Survey. 30 September 1980. Retrieved 2010-05-25.
- Maine Streamflow Data from the USGS
- Maine Watershed Data From Environmental Protection Agency
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