Turtle Mountain is a
mountain
A mountain is an elevated portion of the Earth's crust, generally with steep sides that show significant exposed bedrock. Although definitions vary, a mountain may differ from a plateau in having a limited summit area, and is usually higher t ...
in
Alberta
Alberta is a Provinces and territories of Canada, province in Canada. It is a part of Western Canada and is one of the three Canadian Prairies, prairie provinces. Alberta is bordered by British Columbia to its west, Saskatchewan to its east, t ...
,
Canada
Canada is a country in North America. Its Provinces and territories of Canada, ten provinces and three territories extend from the Atlantic Ocean to the Pacific Ocean and northward into the Arctic Ocean, making it the world's List of coun ...
.
It is located in the
Crowsnest River
The Crowsnest River is a tributary to the Oldman River in southern Alberta, southwestern Alberta, Canada.
Location
From its source in Crowsnest Lake (Alberta), Crowsnest Lake at an elevation of about in the Canadian Rockies, Crowsnest River me ...
Valley and is part of the
Blairmore Range of the
Canadian Rockies
The Canadian Rockies () or Canadian Rocky Mountains, comprising both the Alberta Rockies and the British Columbian Rockies, is the Canadian segment of the North American Rocky Mountains. It is the easternmost part of the Canadian Cordillera, w ...
. The headwaters of the
Oldman River
The Oldman River is a river in southern Alberta, Canada. It flows roughly west to east from the Rocky Mountains, through the communities of Fort Macleod, Lethbridge, and on to Grassy Lake, where it joins the Bow River to form the South Sa ...
are found here.
History
Local Indigenous peoples of the area, the
Blackfoot
The Blackfoot Confederacy, ''Niitsitapi'', or ''Siksikaitsitapi'' (ᖹᐟᒧᐧᒣᑯ, meaning "the people" or " Blackfoot-speaking real people"), is a historic collective name for linguistically related groups that make up the Blackfoot or Bl ...
and
Ktunaxa
The Kutenai ( ), also known as the Ktunaxa ( ; ), Ksanka ( ), Kootenay (in Canada) and Kootenai (in the United States), are an indigenous people of Canada and the United States. Kutenai bands live in southeastern British Columbia, norther ...
, have oral traditions referring to the peak as "the mountain that moves."
[The Frank Slide Story](_blank)
Frank Slide Interpretive Centre
The chemist
B. D. Porritt was born in the area in 1884.
The mountain is most famous for the 1903
Frank Slide
The Frank Slide was a massive rockslide that buried part of the mining town of Frank in the District of Alberta of the North-West Territories,The province of Alberta was not created until September 1905, more than two years after the sli ...
in which 30 million cubic metres (82 million tonnes) of limestone broke away from the top of the mountain, burying the East half of the town of
Frank and killing about 70 to over 90 of the approximate 600 residents of the town.
[Frank Slide Interpretive Centre]
/ref> However, only 12 bodies were ever recovered.
/ref> The mountain has been monitored since 1903 with the most recent project established in 2003.
/ref>
Geology
Turtle Mountain is an anticline
In structural geology, an anticline is a type of Fold (geology), fold that is an arch-like shape and has its oldest Bed (geology), beds at its core, whereas a syncline is the inverse of an anticline. A typical anticline is convex curve, c ...
of Paleozoic
The Paleozoic ( , , ; or Palaeozoic) Era is the first of three Era (geology), geological eras of the Phanerozoic Eon. Beginning 538.8 million years ago (Ma), it succeeds the Neoproterozoic (the last era of the Proterozoic Eon) and ends 251.9 Ma a ...
Rundle Group carbonate
A carbonate is a salt of carbonic acid, (), characterized by the presence of the carbonate ion, a polyatomic ion with the formula . The word "carbonate" may also refer to a carbonate ester, an organic compound containing the carbonate group ...
s thrust over weaker Mesozoic
The Mesozoic Era is the Era (geology), era of Earth's Geologic time scale, geological history, lasting from about , comprising the Triassic, Jurassic and Cretaceous Period (geology), Periods. It is characterized by the dominance of archosaurian r ...
clastics and coal
Coal is a combustible black or brownish-black sedimentary rock, formed as rock strata called coal seams. Coal is mostly carbon with variable amounts of other Chemical element, elements, chiefly hydrogen, sulfur, oxygen, and nitrogen.
Coal i ...
s. Summit fissures at the apex of the anticline likely allowed water to infiltrate and weaken the slightly-soluble carbonates within the mountain face, while the supporting underlying clastics were undermined by valley glaciation followed by erosion from the Crowsnest River.
Turtle Mountain Monitoring Project & Field Laboratory
On April 29, 2003, at the ceremony commemorating the 100th anniversary of the Frank Slide, the Hon. Ralph Klein, Premier of Alberta, announced $1.1 million in funding for a monitoring program on Turtle Mountain.
Implementing the project required a collaborative effort between contractors, the Government of Alberta and universities. Initial stages of the state-of-the-art predictive monitoring system were designed and deployed by March 31, 2005. The Turtle Mountain Monitoring Project was administered by Emergency Management Alberta (EMA), with technical direction from the Energy Resources Conservation Board/Alberta Geological Survey
The Alberta Geological Survey (AGS), founded in 1921, is the official provincial geological survey of Alberta, Canada and currently operates as a division within the Alberta Energy Regulator. The AGS provides geological information and advice abo ...
(ERCB/AGS).
As of April 2, 2005, ERCB/AGS assumed responsibility for the long-term operation, maintenance and upgrading of the mountain-monitoring system, as well as facilitating research using the system. Since taking over the project, AGS has reviewed the near–real-time data stream from the sensor network installed on the south peak of Turtle Mountain. The data show corresponding trends between temperature and the slow, long-term creep of South Peak. The present project updates and modernizes some of the components of the more recent monitoring programs, as well as adding newer, more high-tech systems.
See also
* Mountains of Alberta
Most of Alberta's mountains are found on the western edge of the province of Alberta, consisting of the eastern slopes of the Canadian Rockies, which run through the province from Alberta's mid-point to its southern border with the United Sta ...
References
{{Authority control
Two-thousanders of Alberta
Front Ranges