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Abraham Lake
Abraham Lake
	Lake on the North Saskatchewan River
	Abraham Lake
Location	Clearwater County, Alberta
Coordinates	52°13′25″N 116°25′38″W / 52.22361°N 116.42722°W
Type	Reservoir
Etymology	Silas Abraham
Primary inflows	North Saskatchewan River
Primary outflows	North Saskatchewan River
Basin countries	Canada
Max. length	32 km (20 mi)
Max. width	3.3 km (2.1 mi)
Surface area	53.7 km2 (20.7 sq mi)
Surface elevation	1,340 m (4,400 ft)

Abraham Lake, also known as Lake Abraham, is an artificial lake and Alberta's largest reservoir. It is located in the "Kootenay Plains area of the Canadian Rockies' front range", on the North Saskatchewan River in western Alberta, Canada.^[1]

Description

Abraham Lake has a surface area of 53.7 km² (20.7 sq mi) and a length of 32 km (20 mi).^[2] Although man-made, the lake has the blue color of other glacial lakes in the Rocky Mountains, which is caused by rock flour.^[3]

Abraham Mountain, Elliott Peak, and the Cline River Heliport are located on the western shore of the lake. Mount Michener is situated on the eastern shore. Mount Ernest Ross lies at the southern tip of the lake.

History

Abraham Lake was created by the former Calgary Power Company, now TransAlta, in 1972, with the construction of the Bighorn Dam.^[4] Planning of the dam involved no evaluation of the social and environmental effects it may have caused and no public hearings were held prior to the construction. Construction of the Bighorn Dam flooded the Kootenay Plains and stopped the livelihood (hunting and fur trapping) of the Bighorn band of the Stoney Nakoda First Nation that had lived in that area. It had flooded their cabins, graves and pastures.^[5]

The lake was built on the upper course of the North Saskatchewan River, in the foothills of the Canadian Rockies, and lines David Thompson Highway between Saskatchewan River Crossing and Nordegg.

The Government of Alberta sponsored a contest to name the lake in February 1972, during the final stages of construction of the Bighorn Dam. Students across the province were asked to submit names taking into consideration "historical significance, prominent persons, geography and topography, and the value of the lake."^[6] It was eventually named after Silas Abraham (c. 1870 – 1964), of the Stoney Nakoda First Nation and originally from Morley, Alberta.^[7] He was a farmer and hunter who lived in the Kootenay Plains and later on the Big Horn 144A reserve.^[8]^[9]

Phenomenon

Trapped methane causes frozen bubbles to form under the ice on the lake's surface. This phenomenon results when decaying plants on the lake bed release methane gas, which creates bubbles that become trapped within the ice, in suspended animation, just below the surface as the lake begins to freeze. The visual effects formed by the resulting stacks of bubbles, frozen while rising toward the surface, combined with the clear blue water, have made Abraham Lake a popular destination for photographers and nature observers.^[10]^[11] The ice coverage of the lakes varies throughout the winter. Abraham Lake is usually frozen by late December. Ideal viewing of the ice bubble season is from mid-January to mid-February.^[12]

Bubbles on frozen Abraham Lake

References

^ "Abraham Lake". lakelubbers.com. Raub's Internet for Business, LLC. Archived from the original on 5 September 2017. Retrieved 11 March 2019.
^ "Abraham Lake - Ice Bubbles and More..." David Thompson Country. 30 October 2020. Archived from the original on 2 November 2020. Retrieved 4 April 2021.
^ "Abraham Lake, Alberta, Canada Vacation Info". Lakelubbers. Archived from the original on 24 February 2013. Retrieved 4 April 2021.
^ "Abraham Lake". lakelubbers.com. Archived from the original on 5 September 2017. Retrieved 11 March 2019.
^ Ross, Thomas E. (10 April 2019). A Cultural Geography Of North American Indians. Routledge. ISBN 978-0-429-71275-3. Archived from the original on 12 June 2022. Retrieved 9 February 2021.
^ The Edmonton Journal, 16 February 1972
^ "Noted Indian Visits Stelfox". Edmonton Journal. 13 September 1960. Archived from the original on 12 June 2022. Retrieved 4 April 2022.
^ "Silas Abraham, 'Gentle hunter of the Kootenay Plains'". Red Deer Advocate. 12 May 1972. Archived from the original on 12 June 2022. Retrieved 4 April 2022.
^ "Abraham Lake". Travel Nordegg. Archived from the original on 24 May 2012. Retrieved 3 September 2006.
^ "Frozen Bubbles Suspended Below Abraham Lake". My Modern Met. 27 December 2012. Archived from the original on 29 December 2012. Retrieved 4 April 2021.
^ "Abraham Lake". lakelubbers.com. Archived from the original on 24 February 2013. Retrieved 4 April 2021.
^ "Finding the Abraham Lake Ice Bubbles in Alberta: Everything You Need to Know". Like Where You're Going. February 2021. Retrieved 27 January 2023.