Lake Winnipegosis

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For the similarly named lake in Minnesota, USA, see Lake Winnibigoshish.
Lake Winnipegosis
Lake Winnipeg map.png
Location Manitoba
Coordinates 52°30′N 100°00′W / 52.500°N 100.000°W / 52.500; -100.000Coordinates: 52°30′N 100°00′W / 52.500°N 100.000°W / 52.500; -100.000
Primary inflows Red Deer, Woody, Swan
Primary outflows Waterhen River
Catchment area 49,825 km² (19,237 mi²)
Basin countries Canada
Max. length 240 km (150 mi)
Max. width 51 km (32 mi)
Surface area 5,370 km² (2,075 mi²)
Max. depth 18 m (60 ft)
Surface elevation 254 m (833 ft)
Settlements Camperville Winnipegosis

Lake Winnipegosis is a large (5,370 km²) lake in central North America, in Manitoba, Canada, some 300 km northwest of Winnipeg. It is Canada's eleventh-largest lake. An alternate spelling, once common but now rare, is Lake Winipigoos or simply 'Lake Winipigis'.

The elongated, 240 kilometre long lake is the second-largest of three large lakes in central Manitoba; the other two are Lake Winnipeg, the largest, and Lake Manitoba. All three lakes are on the floor of the prehistoric glacial Lake Agassiz.

The lake's watershed extends over some 49,825 km² in Manitoba and Saskatchewan. Tributaries include the Red Deer, Woody, and Swan rivers. The lake drains through the Waterhen River into Lake Manitoba, and is thus part of the Lake Winnipeg, Nelson River, and Hudson Bay watersheds.

The lake's name derives from that of Lake Winnipeg, with a diminutive suffix. Winnipeg means 'big muddy waters' and Winnipegosis means 'little muddy waters'.

The lake is famous for its commercial fishery of walleye and other freshwater species. Northern pike and mullet together now account for over 80 percent of its commercial fishing.[1] It is also well known for its migratory bird populations, which make it a prime hunting area in the fall.

Communities on the lake include Camperville and Winnipegosis. Winnipegosis is a village on the south end of the lake. The population is about 700 people.

Lake Winnipegosis from Winnipegosis Beach


  1. ^ "A profile of Manitoba's commercial fishery". Manitoba Water Stewardship (Department, Government of Manitoba). 2010-05-14. Retrieved 2011-07-29.