Maligne Lake (/məˈliːn/ mə-LEEN) 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, a frequently photographed islet. The lake is located 44 km (27 mi) south of Jasper town, and is accessible by motor vehicle, including shuttle buses from Jasper. Boat tours run to Spirit Island in the spring to autumn season. The 44 km Skyline Trail, Jasper's most popular, highest and above treeline, multi-day hike, begins at Maligne Lake and finishes near the town of Jasper. Other popular day hikes include the Opal Hills and Bald Hills loops. Winter activities include cross-country skiing.
Maligne Lake is approximately 22.5 km (14.0 mi) long and is 97 m (318 ft) at its deepest point, in the south end of the lake. It averages 35 m (115 ft) in depth. It sits at approximately 1,670 m (5,480 ft) asl. Easily visible from the Maligne Lake Day Lodge are Leah and Samson Peaks and Mount Paul to the east, and Mounts Charlton, Unwin, Mary Vaux and Llysfran Peak to the south and west. The Charlton, Unwin and Maligne glaciers are visible from the lake, which boasts a self-sustaining population of introduced rainbow trout and brook trout. It is a popular spot for sport fishing, kayaking and canoeing. Parks Canada maintains two camping sites, accessible only by canoe, at Fisherman's Bay and Coronet Creek.
Maligne Lake is fed and drained by the Maligne River, which enters the lake on its south side, near Mount Unwin and drains the lake to the north. Maligne Lake, as well as Maligne River, Maligne Mountain, and Maligne Pass, takes its name from the French word for malignant or wicked. The name was used by Father Pierre-Jean De Smet (1801–1873) to describe the turbulent river that flows from the lake (in the spring), and soon spread to the lake, canyon, pass, mountain and range. It is also possible that early French traders applied the name to the river for its treacherous confluence with the Athabasca River.
The lake was well known to First Nations of the area, including Samson Beaver, who knew it as Chaba Imne (Beaver Lake). He drew the first map of the lake and the route to it for Mary Schaffer in 1907. Schaffer was a surveyor who explored much of the Rocky Mountains area. The first European to actually see the lake was Henry McLeod, scouting routes for the CPR in 1875. When he sighted it, he was high in the mountain range and did not actually go into the lake area or identify the route to the lake. June 8, 1908, with the help of Samson Beaver's map, Schaffer, her travelling companion Mary Adams and the guides Billy Warren and Sid Unwin, set out from Lake Louise to reach the lake known by the Stoney people as Chaba Imne (Beaver Lake). When they arrived at the lake, they explored it with the means of a raft, nicknamed the HMS Chaba. Schaffer returned in 1911 to survey the lake. She also named several of the mountains and peaks. Mary Schaeffer's books of the area attracted tourists from all over the US.
Maligne Lake is the location of two Alberta registered historic buildings, the Maligne Lake Chalet and accompanying guest house, washhouse, and cache, all built in 1927 by Col. Fred Brewster as a part of his "Rocky Mountain Camps". For a time, the Maligne Lake Chalet was the largest, most luxurious accommodation in Jasper National Park. The other historic building is the Boathouse, built by Donald 'Curly' Philips in 1928 to accommodate his wilderness guiding and fishing business. In the same year, he finished construction of the first Maligne Lake Tour boat, the Leah (named for Leah Samson, wife of Samson Beaver). Philips resided in his boathouse until his untimely death in an avalanche (1936, aged 52). The historic buildings are maintained by Maligne Lake Tours, a company that dates back to Brewster's and Philips' early entrepreneurial endeavours.
Curly Philips is credited with stocking Maligne Lake with rainbow trout, packed overland in barrels. The largest rainbow trout in Alberta was subsequently caught in this lake (20 lbs, 4 oz.) by means of sportfishing. The record fish was mounted and is currently owned by Currie's Guiding and Tackle, Jasper, Alberta, Canada. Jasper National Park staff later introduced brook trout. The third largest brook trout in the world was also sportfished from this lake and is owned by David Robson of Hinton, Alberta, Canada.
Wildlife is surprisingly abundant along this high altitude oligotrophic lake. Grizzly bear, black bear, mule deer, caribou, wolves, moose, and mountain sheep are some of the larger mammals that frequent the lake area during the summer season. Bald eagles, golden eagles and osprey also frequent the area and live off the fish populations.
Maligne Lake is the largest lake in Jasper National Park. The valley in which the lake lies was carved and excavated by valley glaciers, and the lake has been dammed at its northern end by an end moraine deposited by the last glacier, which flowed down the valley towards the Athabasca River. The glacial deposits and landforms forming the end moraine are excellent examples of glacial deposition.
The highest peak in the area is Mount Brazeau (11,386 feet), which stands southeast of Maligne Lake at the head of the Brazeau Ice field. It is barely visible behind the towering massif of Monkhead (10,535 feet). In general, the highest mountains are at the south end of the lake and are composed of strata that were deposited between 4,000 and 5,000 years ago. Northward from the high peaks at the south end of the lake, the valley sides are different in form and composition. The east side of the valley is made of steeply dipping limestone beds of Devonian to Mississippian age that form the spectacular range of sawtooth mountains called the Colin Range, which is part of the Queen Elizabeth Ranges. On the west side of the valley, and in sharp contrast to the east side, is the Maligne Range composed of Cambrian and Precambrian quartzite and shales. These mountains owe their more subdued outline to the glaciers, which moved over them and rounded them to their present form.
The Maligne River, arising at Maligne Pass (6,800 feet), flows into the northern part of Maligne Lake. At the northern end of the lake, the river flows out of the lake in a narrow channel to Medicine Lake. There is no visible northern outlet from Medicine Lake because the Maligne River flows underground (except during flood) for 9 miles (14 km) before reappearing in its remarkable canyon, which is about 180 feet (55 m) in depth. The water flowing in the riverbed between Medicine Lake and Maligne Canyon is derived from the adjacent mountainsides.
Not only is the Maligne Valley a U-shaped valley, but it is also a hanging tributary valley as a result of deepening or widening of the Athabasca Valley by glacial erosion at a faster rate than the tributary Maligne Valley. This process leaves the tributary at its junction with the main valley hanging above the main valley.