Medicine Lake is located within

Jasper National Park Jasper National Park is a national park in Alberta, Canada. It is the largest national park within Alberta's Rocky Mountains spanning . It was established as a national park in 1930 and declared a UNESCO World Heritage Site in 1984. Its locatio ...

, Alberta, Canada. It is located approximately southeast of the townsite of

Jasper, Alberta Jasper is a specialized municipality and townsite in western Alberta within the Canadian Rockies. The townsite is in the Athabasca River valley and is the commercial centre of Jasper National Park. History Established in 1813, Jasper Hou ...

. Medicine Lake is approximately long and is a relatively shallow lake. The lake is part of the Maligne Valley watershed which is mainly glacial fed.

Geology

Medicine Lake is a geologic anomaly in the sense that it is not actually a lake but rather an area in which the

Maligne River The Maligne River ( ) is a medium-sized river in the Canadian Rockies. It runs through parts of Jasper National Park in Alberta, Canada. The Maligne is a major tributary of the Athabasca River. The river takes from the French word for malignant or ...

(flowing from

Maligne Lake Maligne Lake ( ) is a lake in Jasper National Park, Alberta, Canada. The lake is famed for the colour of its azure water, the surrounding peaks, the three glaciers visible from the lake, and Spirit Island, a frequently and very famously photograph ...

into the

Athabasca River The Athabasca River (French: ''Rivière Athabasca'') is a river in Alberta, Canada, which originates at the Columbia Icefield in Jasper National Park and flows more than before emptying into Lake Athabasca. Much of the land along its banks is pro ...

) backs up and suddenly disappears underground as a

losing stream A losing stream, disappearing stream, influent stream or sinking river is a stream or river that loses water as it flows downstream. The water infiltrates into the ground recharging the local groundwater, because the water table is below the bo ...

. During the summer months during intensified meltwater

runoff Runoff, run-off or RUNOFF may refer to: * RUNOFF, the first computer text-formatting program * Runoff or run-off, another name for bleed, printing that lies beyond the edges to which a printed sheet is trimmed * Runoff or run-off, a stock market ...

the lake (which during the winter months is a meandering frozen river) fills to levels which fluctuate over time and with the runoff events. Much like a bathtub that is filled too fast for it to drain, it becomes laden with water (lake) until it can slowly drain as the tap flow (runoff) is reduced (river). The underground system is extensive and during the 1970s researchers used a

biodegradable Biodegradation is the breakdown of organic matter by microorganisms, such as bacteria and fungi. It is generally assumed to be a natural process, which differentiates it from composting. Composting is a human-driven process in which biodegradati ...

dye to determine the underground river's extent. The dye showed up in many of the lakes and rivers in the area to the point where it became clear that the underground system was one of the most extensive in the world.

Fauna

Medicine Lake also boasts a healthy population of

rainbow trout The rainbow trout (''Oncorhynchus mykiss'') is a species of trout native to cold-water tributaries of the Pacific Ocean in Asia and North America. The steelhead (sometimes called "steelhead trout") is an anadromous (sea-run) form of the coasta ...

and

brook trout The brook trout (''Salvelinus fontinalis'') is a species of freshwater fish in the char genus ''Salvelinus'' of the salmon family Salmonidae. It is native to Eastern North America in the United States and Canada, but has been introduced elsewhere ...

and is a fly fisherman's paradise. Wildlife is surprisingly abundant along this high altitude lake.

Grizzly bear The grizzly bear (''Ursus arctos horribilis''), also known as the North American brown bear or simply grizzly, is a population or subspecies of the brown bear inhabiting North America. In addition to the mainland grizzly (''Ursus arctos horri ...

black bear Black bear or Blackbear may refer to: Animals * American black bear (''Ursus americanus''), a North American bear species * Asian black bear (''Ursus thibetanus''), an Asian bear species Music * Black Bear (band), a Canadian First Nations group ...

mule deer The mule deer (''Odocoileus hemionus'') is a deer indigenous to western North America; it is named for its ears, which are large like those of the mule. Two subspecies of mule deer are grouped into the black-tailed deer. Unlike the related whit ...

caribou Reindeer (in North American English, known as caribou if wild and ''reindeer'' if domesticated) are deer in the genus ''Rangifer''. For the last few decades, reindeer were assigned to one species, ''Rangifer tarandus'', with about 10 subspe ...

wolves The wolf (''Canis lupus''; plural, : wolves), also known as the gray wolf or grey wolf, is a large Canis, canine native to Eurasia and North America. More than thirty subspecies of Canis lupus, subspecies of ''Canis lupus'' have been reco ...

moose The moose (in North America) or elk (in Eurasia) (''Alces alces'') is a member of the New World deer subfamily and is the only species in the genus ''Alces''. It is the largest and heaviest extant species in the deer family. Most adult mal ...

and

mountain sheep The argali (''Ovis ammon''), also known as the mountain sheep, is a wild sheep that roams the highlands of western East Asia, the Himalayas, Tibet, and the Altai Mountains. Description The name 'argali' is the Mongolian word for wild sheep. I ...

are some of the larger mammals that frequent the lake area during the summer season.

Bald eagles The bald eagle (''Haliaeetus leucocephalus'') is a bird of prey found in North America. A sea eagle, it has two known subspecies and forms a species pair with the white-tailed eagle (''Haliaeetus albicilla''), which occupies the same niche as ...

, and

osprey The osprey (''Pandion haliaetus''), , also called sea hawk, river hawk, and fish hawk, is a diurnal, fish-eating bird of prey with a cosmopolitan range. It is a large raptor reaching more than in length and across the wings. It is brown o ...

also frequent the area and live off the fish populations.

Gallery

Medicine Lake 01.jpg, Medicine Lake in November Medicine Lake 02.jpg, Medicine Lake in November Medicine Lake 03.jpg, Medicine Lake in November Medicine Lake 04.jpg, Medicine Lake in November Jasper-Bear-Hunt-22.jpg, A black bear sleeps in front of a den that it has dug out of the dry lakebed of Medicine Lake in Jasper National Park, Alberta, Canada.

References

External links

Map of area, Parks CanadaParks Canada website
Jasper National Park Lakes of Alberta {{AlbertaRockies-geo-stub

Geology

Fauna

Gallery

See also

References

External links