Tagish Lake

Tagish Lake
Name	Tagish Lake
Location	Yukon and British Columbia, Canada
Coordinates	60°38′N 134°27′W
Type	Glacial lake
Inflow	Takhini River, Wind River, Dezadeash River
Outflow	Marsh Lake via Tagish River
Catchment	Yukon River basin
Basin countries	Canada
Area	~100 km2
Max-depth	~300 m
Elevation	~670 m

Tagish Lake is a deep glacial lake straddling the boundary between Yukon and British Columbia in Canada. The lake occupies part of the Yukon River basin and lies near communities such as Carcross and Whitehorse. It is notable for its complex shoreline, cold oligotrophic waters, and a well-documented meteorite fall that attracted international scientific attention.

Geography

Tagish Lake lies in the southern Yukon near the Alaska Highway corridor and adjacent to Carcross Desert and the Coast Mountains. The lake system comprises two main basins connected by a narrow channel, with tributary valleys formed by Pleistocene glaciation associated with the Cordilleran Ice Sheet and Fraser Glaciation. Nearby geographic features include Marsh Lake, the Takhini River, the Teslin River, and the historic Klondike Gold Rush routes. Administrative jurisdictions include the Carcross/Tagish First Nation and the territorial capital Whitehorse.

Hydrology

The lake's hydrology is influenced by snowmelt from the surrounding Yukon Ranges and inflows such as the Dezadeash River and smaller alpine streams draining the St. Elias Mountains flank. Outflow proceeds via the Tagish River toward Marsh Lake and ultimately the Yukon River. Seasonal ice cover links Tagish Lake to studies conducted by researchers from institutions such as University of British Columbia, University of Alberta, Simon Fraser University, and the National Research Council Canada on limnology and cryosphere interactions. Hydrological monitoring has involved collaboration with the Government of Yukon and the Natural Resources Canada hydrometric network.

History and Human Use

Indigenous presence around the lake dates to centuries of occupation by the Carcross/Tagish First Nation, with archaeological connections to broader Athabaskan cultures associated with the Tlingit and Dena'ina. Euro-Canadian contact intensified during the Klondike Gold Rush and the construction of the White Pass and Yukon Route railway and the Alaska Highway, bringing prospectors, miners, and later transportation networks. In the 20th century, Tagish Lake saw seasonal fisheries regulated under territorial statutes administered in partnership with the Council of Yukon First Nations. Scientific expeditions from institutions including the Smithsonian Institution, the Royal Ontario Museum, and the Natural History Museum, London have conducted fieldwork on geology, paleoclimate, and meteorites in the region.

Ecology and Wildlife

The lake supports coldwater fish species such as Arctic grayling, lake trout, and Northern pike, which are important to subsistence and recreational fisheries managed by the Department of Fisheries and Oceans and territorial agencies. Riparian zones host boreal and subalpine flora associated with the Yukon Flats National Wildlife Preserve biome and species studied by researchers from Environment and Climate Change Canada and the Canadian Wildlife Service. Wildlife in the watershed includes moose, mountain goat, migratory birds tracked via projects at the Canadian Wildlife Service and the Cornell Lab of Ornithology, and carnivores such as grizzly bear and wolf that feature in conservation dialogues involving the World Wildlife Fund and regional Indigenous governments.

Tagish Lake Meteorite

On January 18, 2000, a bright fireball produced strewn meteorites over the Tagish Lake region that were recovered by teams from the University of Calgary, the University of Western Ontario, and the NASA Johnson Space Center. Fragments designated as Tagish Lake meteorite became pivotal in meteoritics, with analyses by laboratories at the Smithsonian Institution National Museum of Natural History, the Field Museum, Massachusetts Institute of Technology, California Institute of Technology, and the University of Tokyo. Studies of carbonaceous chondrite material linked to the Murchison meteorite and discussions within the International Astronomical Union highlighted organic compounds and presolar grains found in the meteorite. Research involving isotopic dating by teams at Lawrence Livermore National Laboratory, Oak Ridge National Laboratory, and Max Planck Institute for Chemistry informed models of early Solar System processes discussed at meetings of the American Geophysical Union and published through the Geochemical Society.

Recreation and Tourism

Tagish Lake is a destination for boating and ice fishing accessed from the Alaska Highway and local roads near Carcross and Whitehorse. Winter sports such as snowmobiling connect to regional events promoted by the Yukon Quest and guided eco-tourism operations affiliated with the Destination Canada marketing initiatives. Accommodations and interpretive services are offered by lodges and outfitters that collaborate with the Carcross/Tagish First Nation and provincial tourism boards including Tourism Yukon. Nearby attractions include the Carcross Desert, the White Pass Summit, and cultural sites curated in partnerships with the Canadian Museum of History.

Category:Lakes of Yukon Category:Lakes of British Columbia Category:Meteorites