Champlain Lake

Lake Champlain Lac Champlain
Lake Champlain-River Richelieu watershed
Location	New York / Vermont in the United States; and Quebec in Canada
Coordinates	44°32′N 73°20′W / 44.533°N 73.333°W / 44.533; -73.333Coordinates: 44°32′N 73°20′W / 44.533°N 73.333°W / 44.533; -73.333
Primary inflows	Otter Creek, Winooski River, Missisquoi River, Poultney River, Lamoille River, Ausable River, Chazy River, Boquet River, Saranac River, La Chute River
Primary outflows	Richelieu River
Catchment area	21,326 km2 (8,234 sq mi)
Basin countries	Canada, United States
Max. length	263 km (163 mi)
Max. width	23 km (14 mi)
Surface area	1,331 km2 (514 sq mi)
Average depth	19.5 m (64 ft)
Max. depth	122 m (400 ft)
Water volume	25.8 km3 (6.2 cu mi)
Residence time	3.3 years
Shore length1	945 km (587 mi)
Surface elevation	29 to 30 m (95 to 100 ft)
Islands	80 (Grand Isle, North Hero, Isle La Motte, see list)
Settlements	Burlington, Vermont; Plattsburgh, New York
1 Shore length is not a well-defined measure.

Lake Champlain /ʃæmˈpleɪn/ (French: Lac Champlain) is a natural freshwater lake in North America mainly within the borders of the United States (in the states of Vermont and New York) but partially situated across the Canada–U.S. border, in the Canadian province of Quebec.

The New York portion of the Champlain Valley includes the eastern portions of Clinton County and Essex County. Most of this area is part of the Adirondack Park. There are recreational opportunities in the park and along the relatively undeveloped coastline of Lake Champlain. The cities of Plattsburgh, New York and Burlington, Vermont are on the lake's western and eastern shores, respectively, and the village of Ticonderoga, New York is in the region's southern part. The Quebec portion is in the regional county municipalities of Le Haut-Richelieu and Brome-Missisquoi. There are a number of islands in the lake; the largest include Grand Isle, Isle La Motte, and North Hero, all part of Grand Isle County, Vermont.