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The Upper and Lower Grassi Lakes lie at an elevation of about 1,525 m (5,003 ft) in the southern Canadian Rockies overlooking the town of Canmore, Alberta. They receive their water from the Spray Lakes Reservoir on the Spray River. The land is part of the Canmore Nordic Centre Provincial Park, which is part of the Kananaskis Country park system.

Grassi Lakes
The Upper and Lower Grassi Lakes, with the town of Canmore and the Bow River valley in the distance.
Grassi Lakes
Grassi Lakes
LocationCanmore Nordic Centre Provincial Park, Alberta
Coordinates51.0722°N 115.4069°W / 51.0722; -115.4069
Primary inflowsSpray River
Primary outflowsSpray River
Basin countriesCanada

The lakes are named after Lawrence Grassi,[1] who emigrated to Canada in 1912. After working for the Canadian Pacific Railway for several years, he began work as a miner in the Canmore coal mines in 1916. Grassi went on to become a well-respected climbing guide and built many trails in the area, including the one to the Grassi Lakes that bear his name.[2]

Lower Grassi Lake.
Lower Grassi Lake.

The small, emerald-colored Grassi Lakes are a popular destination for hikers and rock climbers.[2] They lie at the foot of grey cliffs that are about 75 m (246 ft) high. The cliffs are part of the Cairn Formation, a fossil reef that formed during the Late Devonian period. The primary reef-forming organisms were stromatoporoids, a long-extinct type of bulbous sponge.[3] The cliff is a favorite of rock climbers who use the pockets left by the sponges as hand- and foot-holds.

Rock paintings that are more than 1,000 years old can be found near the top of the canyon beyond the lakes.[4] They are believed to have been painted by Kutenai ancestors.[2]


See also



References


  1. V, Harry (18 May 2016). "Lawrence Grassi: The Man Behind the Lakes". Avenue Calgary.
  2. Daffern, Gillean, 2003. Canmore & Kananaskis Country, 2nd edition, 296 p. Rocky Mountain Books, Surrey, British Columbia. ISBN 978-189476541-1.
  3. Bloy, G.R., Leggett, S.R. and Hunter, I.G. 1989. The lower Fairholme reef complex (Cairn Formation), White Man Gap area, Canmore, Alberta. In: Reefs, Canada and adjacent areas. Canadian Society of Petroleum Geologists, Memoir 13, p. 399-402.
  4. MountainNature

На других языках


[de] Grassi-Seen

Die Grassi-Seen (englisch Grassi Lakes) befinden sich in der Nähe des Banff-Nationalparks in Alberta, Kanada. Benannt wurden sie nach dem Minenarbeiter, Bergsteiger und Parkwärter Lorenzo (Lawrence) Grassi, der von 1930 bis zu seinem Tod 1985 in dem nahegelegenen Ort Canmore arbeitete. Die beiden Seen haben keine oberirdischen Zuflüsse, sondern werden durch unterirdischen Abfluss gespeist. Geologisch gesehen befinden sie sich auf Gestein der Flume-Formation. Die am See gelegenen Felsen, die als Bioherme aus Kalkstein bestehen, wurden ursprünglich im Devon von Stromatoporen als Riffkörper gebildet. Sie stellen einen Aufschluss der darüberliegenden Cairn-Formation dar.[1] Durch unzählige leuchtende Algen auf dem Grund wird eine blaue und grüne Farbe hervorgerufen.[2]
- [en] Grassi Lakes



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