Lake Couchiching

Coordinates: 44°40′N 79°23′W / 44.667°N 79.383°W / 44.667; -79.383
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Lake Couchiching
Lake Couchiching at Orillia
Lake Couchiching is located in Southern Ontario
Lake Couchiching
Lake Couchiching
LocationOntario, Canada
Coordinates44°40′N 79°23′W / 44.667°N 79.383°W / 44.667; -79.383
Basin countriesCanada
Max. length16 km (9.9 mi)
Max. width5 km (3.1 mi)
Surface area33.75 km2 (13.03 sq mi)
Max. depth12 m (39 ft)
Surface elevation219 m (719 ft)
IslandsChief, Horseshoe, Heron, Thistle, Bird, Nadie, Green, Portage, Ship, Shotgun, and Garnet

Lake Couchiching (/ˈkəɪŋ/ KOO-chə-ching),[1] from the Ojibwe gojijiing meaning "inlet", is a medium-sized lake in Central Ontario, Canada, separated from Lake Simcoe by a narrow channel.

Lakes Simcoe and Couchiching are popular spots for fishing in summer and ice fishing in winter.

Singer-songwriter Gordon Lightfoot paid homage to the lake in the song "Couchiching".

The Couchiching Institute on Public Affairs holds its annual conference on the shores of the lake every August. Camp Couchiching is also located near the lake.


Satellite image of the lake

The Trent-Severn Waterway enters Lake Simcoe by the Talbot River and exits this lake by the Severn River which empties into Georgian Bay.

The lake is 16 kilometres (9.9 mi) long and slightly less than 5 kilometres (3.1 mi) wide. The city of Orillia is located on the narrow channel connecting this lake with Lake Simcoe.

Water quality[edit]

In a 2012 study, the lake showed a microalgae density of 2.4 × 10^7/cm^2, with a high species diversity. The lake showed low total phosphorus and high organic carbon content, when compared to Lake Simcoe.[2]

See also[edit]


  1. ^ Merriam-Webster's Geographical Dictionary, Third Edition (Merriam-Webster, 1997; ISBN 0877795460), p. 285.
  2. ^ Kanavillil, N., Thorn, M., & Kurissery, S (September 2012). "Characterization of natural biofilms in temperate inland waters". Journal of Great Lakes Research. Elsevier B.V. 38 (3): 429–438. doi:10.1016/j.jglr.2012.06.014.{{cite journal}}: CS1 maint: multiple names: authors list (link)

External links[edit]