Lake Couchiching is the small teardrop-shaped lake just north of Lake Simcoe.
|Max. length||16 km|
|Max. width||5 km|
|Surface area||33.75 square km (12,100 acres)|
|Average depth||6 m|
|Max. depth||12 m|
|Surface elevation||219 m (719 ft)|
|Islands||Big chief, Horseshoe, Heron, Thistle, Bird, Nadie, Green, Portage, Ship, and Garnet|
Lake Couchiching (// KOO-chə-ching), from the Ojibwe gojijiing meaning "inlet", is a medium-sized lake in Central Ontario separated from Lake Simcoe by a narrow channel. 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 km long, slightly less than 5 km wide and fairly shallow with an average depth of six metres. The city of Orillia is located on the narrow channel connecting this lake with Lake Simcoe.
Singer-songwriter Gordon Lightfoot paid homage to the lake in the song Couchiching.
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.
- Merriam-Webster's Geographical Dictionary, Third Edition (Merriam-Webster, 1997; ISBN 0877795460), p. 285.
- 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. Retrieved 25 July 2014.
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