The Alsek River is a world-renowned wilderness paddle through southwestern Yukon and Alaska, famous for stunning glacier-fed waters, dramatic mountain scenery, and exceptional wildlife viewing. This 2-3 week expedition of approximately 200-300km descends from the Bagley Icefield region through canyons and braided flats offering Class II-III rapids, clear icebergs calving from tidewater glaciers, and views of Denali and other peaks. The Alsek is a Canadian Heritage River known for excellent fishing, abundant grizzly bears, moose, and seabirds along the lower reaches. Access requires careful planning via charter flights or helicopter to the headwaters, with takeout at the Gulf of Alaska. Best paddled July-August during peak season, the Alsek demands experienced expedition paddlers comfortable with glacial silt, variable weather, and extended wilderness self-sufficiency.
Alsek River is estimated at Intermediate. Whitewater ratings are not exact: grades change with water level and season. Verify current conditions locally before you paddle.
The best time is July-August.
Alsek River is located in the Yukon region of Canada.
Various Yukon paddling resources and expedition outfitters
Conditions change with water level and season. Grades and positions are for planning, not navigation. Verify locally before you paddle. Terms of use
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