Lowell Glacier is a large glacier located in Kluane National Park. It is approximately 70 km long and averages 5 km wide. The glacier terminates in Lowell Lake at approximately 500 m elevation, and about 60 km southwest of Haines Junction. The Alsek River flows into Lowell Lake from the north and exits the south end of the lake.
Glacier surges are short periods of rapid glacier advance, likely caused by sudden changes in hydrological conditions beneath a glacier. Surging activity typically lasts for a year or two and occurs every decade or two. Lowell Glacier most recently surged in 2009-2010. Prior to that, Lowell Glacier surged in 1998-1999, 1983-1984, 1968-1970 and 1948-1950.