The Union River is a 21.9-mile-long (35.2 km) river that runs through Ellsworth , the county seat of Hancock County in eastern Maine . In the colonial era, it was known as the Mount Desert River .
4-517: The river forms at the north end of Graham Lake at the confluence of the river's East and West branches ( 44°43′48″N 68°23′04″W / 44.7300°N 68.3844°W / 44.7300; -68.3844 ( Union River source ) ), on the border of the towns of Mariaville and Waltham . It runs south 13 miles (21 km) through Graham Lake to the dam at the lake's outlet, then continues south through Ellsworth, flowing through Leonard Lake and passing over its outlet dam just above
8-538: The border of Surry and Ellsworth , and thence into Blue Hill Bay . This article related to a river in Maine is a stub . You can help Misplaced Pages by expanding it . Graham Lake (Maine) Graham Lake in Hancock County , Maine is a eutrophic reservoir formed by the construction of a hydro-electric power dam in 1922 four miles (6 km) upstream from Ellsworth, Maine . The first dam
12-480: The downtown. The Leonard Lake dam, also known as The Ellsworth Dam, built in 1907, spans the Union River and forms Lake Leonard. It houses a powerhouse with four generating units that combined produce 29,907 megawatt hours per year, enough to power about 3,000 households. At downtown Ellsworth, the river reaches tidewater, and flows south as an estuary for 5 miles (8 km) to its mouth at Union River Bay , on
16-548: Was a hastily built earthen dam built by the Bangor Hydro Electric Company. It failed in 1923, flooding downtown Ellsworth and doing almost $ 8 million in property damage. The dam was rebuilt and operated by Bangor Hydro until its sale in 1999. The dam has since been acquired by PPL Corporation , which continues to use it to generate electricity. Water clarity in the lake is low, with secchi disk measurements averaging less than 3 meters. Fish in
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