Margerie Glacier
Margerie Glacier is a tidewater glacier in Glacier Bay National Park, southeastern Alaska. It is a large valley glacier whose terminus calves into Tarr Inlet and is known for spectacular calving events. The glacier’s front is several hundred meters wide and the glacier drains a substantial part of the local icefield.
Unlike some Alaskan glaciers that are retreating rapidly, Margerie has shown relatively modest long-term change compared with neighbors (it has been described as relatively stable in certain periods), but tidewater dynamics and ocean warming influence its calving rate and thinning at the terminus — factors that contribute to mass loss and reflect broader regional patterns of ice decline.