Medicine Lake (Alberta)
Encyclopedia
Medicine Lake is located within Jasper National Park
Jasper National Park
Jasper National Park is the largest national park in the Canadian Rockies, spanning 10,878 km² . It is located in the province of Alberta, north of Banff National Park and west of the City of Edmonton. The park includes the glaciers of the Columbia Icefield, hot springs, lakes, waterfalls and...

, Alberta, Canada. It is located approximately 20 km (12.4 mi) southeast of the townsite of Jasper, Alberta
Jasper, Alberta
Jasper is a specialized municipality in western Alberta, Canada. It is the commercial centre of Jasper National Park, located in the Canadian Rockies in the Athabasca River valley....

. Medicine Lake is approximately 7 km (4.3 mi) 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
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 wicked...

 (flowing from Maligne Lake
Maligne Lake
Maligne Lake is a lake in Jasper National Park, Alberta, Canada. It is famed for the colour of its water, the surrounding peaks, the three glaciers visible from the lake and Spirit Island, one of the most photographed locations in the world. The lake is located south of Jasper town, and is...

 into the Athabasca River
Athabasca River
The Athabasca River originates from the Columbia Glacier of the Columbia Icefield in Jasper National Park in Alberta, Canada...

) backs up and suddenly disappears underground. During the summer months during intensified meltwater runoff
Surface runoff
Surface runoff is the water flow that occurs when soil is infiltrated to full capacity and excess water from rain, meltwater, or other sources flows over the land. This is a major component of the water cycle. Runoff that occurs on surfaces before reaching a channel is also called a nonpoint source...

 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 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
Rainbow trout
The rainbow trout is a species of salmonid native to tributaries of the Pacific Ocean in Asia and North America. The steelhead is a sea run rainbow trout usually returning to freshwater to spawn after 2 to 3 years at sea. In other words, rainbow trout and steelhead trout are the same species....

 and brook trout
Brook trout
The brook trout, Salvelinus fontinalis, is a species of fish in the salmon family of order Salmoniformes. In many parts of its range, it is known as the speckled trout or squaretail. A potamodromous population in Lake Superior are known as coaster trout or, simply, as coasters...

 and is a fly fisherman's paradise.

Wildlife is surprisingly abundant along this high altitude lake. Grizzly bear
Grizzly Bear
The grizzly bear , also known as the silvertip bear, the grizzly, or the North American brown bear, is a subspecies of brown bear that generally lives in the uplands of western North America...

, black bear
American black bear
The American black bear is a medium-sized bear native to North America. It is the continent's smallest and most common bear species. Black bears are omnivores, with their diets varying greatly depending on season and location. They typically live in largely forested areas, but do leave forests in...

, mule deer
Mule Deer
The mule deer is a deer indigenous to western North America. The Mule Deer gets its name from its large mule-like ears. There are believed to be several subspecies, including the black-tailed deer...

, caribou, wolves, moose
Moose
The moose or Eurasian elk is the largest extant species in the deer family. Moose are distinguished by the palmate antlers of the males; other members of the family have antlers with a dendritic configuration...

, and mountain sheep are some of the larger mammals that frequent the lake area during the summer season. Bald eagles, and osprey
Osprey
The Osprey , sometimes known as the sea hawk or fish eagle, is a diurnal, fish-eating bird of prey. It is a large raptor, reaching more than in length and across the wings...

also frequent the area and live off the fish populations.

External links

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