Lake Memphremagog

Lake Memphremagog
Lac Memphrémagog
Lake Memphremagog
Lake Memphremagog Show map of Vermont Lake Memphremagog Show map of Quebec Lake Memphremagog Show map of the United States Lake Memphremagog Show map of Canada
Location	Memphrémagog Regional County Municipality, Quebec, Canada; Orleans County, Vermont, United States
Coordinates	45°0′18″N 72°13′53″W / 45.00500°N 72.23139°W / 45.00500; -72.23139
Primary inflows	(clockwise from the mouth) Johns River (Vermont), Clyde River (Vermont), Barton River (Vermont), Black River (Vermont), Cherry River (Quebec)
Primary outflows	Magog River
Catchment area	686 sq mi (1,777 km2)
Basin countries	Canada / United States
Max. length	32 mi (51 km)
Surface area	41 sq mi (110 km2)
Average depth	15.5 m (51 ft)
Max. depth	107 m (351 ft)
Surface elevation	208 m (682 ft)
Islands	21

Lake Memphremagog (mem-frə-MAY-gog;^[1] French: Lac Memphrémagog) is a fresh water glacial lake located between Newport, Vermont, United States and Magog, Quebec, Canada.^[2] The lake spans both Quebec and Vermont, but is mostly in Quebec. Most of the watershed that feeds the lake is located in Vermont, and is a source for accumulated phosphorus, sediments, and other pollutants. Cleanup efforts since the late 1980s have improved the water quality. The lake furnishes potable water for 200,000 people.^{[citation needed]}