Triangle Lake (Ontario)

Triangle Lake
Location	northwestern Ontario
Coordinates	49°50′12″N 93°34′24″W / 49.8367°N 93.5732°WCoordinates: 49°50′12″N 93°34′24″W / 49.8367°N 93.5732°W
Type	Glacial
Primary inflows	One Unnamed Creek
Primary outflows	none
Basin countries	Canada
Max. length	600 metres
Max. width	250 metres
Shore length^1	2.531 kilometres
Frozen	Only in winter
Islands	none
Settlements	none
^1 Shore length is not a well-defined measure.

Triangle Lake is a very small lake in northwestern Ontario, Canada. It is located between Dryden and Kenora, Ontario. It can be seen from the Trans-Canada Highway on the north side. In late June, 2009, it was the site of road construction. Triangle lake has recently been discovered to be acidified. It is a major concern.