Margerie Glacier Calving Poster

An iceberg "calves" from Margerie Glacier, a 21-mile-long (34 km) tide water glacier in Glacier Bay in Alaska which is part of the Glacier Bay National Park and Preserve. The glacier begins on the south slope of Mount Root, at the Alaska-Canada border in the Fairweather Range, and flows southeast and northeast to Tarr Inlet. It was named for the famed French geographer and geologist Emmanuel de Margerie (1862 to 1953), who visited the Glacier Bay in 1913. The glacier is an integral part of the Glacier Bay, which was declared a National Monument on February 26, 1925, a National Park and Wild Life Preserve on December 2, 1980, a UNESCO declared World Biosphere Reserve in 1986 and a World Heritage Site in 1992. While most of the tidewater and terrestrial glaciers in the Park are stated to be thinning and receding over the last several decades, Margerie Glacier is said to be stable and Johns Hopkins Glacier is stated to be advancing, on the eastern face of the Fairweather Range.