GLACIER TYPES retreating glaciers piedmont glaciers icefields hanging glaciers tidewater glaciers surging glaciers rock glaciers mountain glaciers ice caps
GLACIER FEATURES glacier terminus ice caves icefall crevasses ogives
GLACIAL LANDFORMS glacial grooves and striations chatter marks glacial trough glacial erratic moraines aretes, horns, and cirques drumlins
Ice Cavern in Antarctica. Photograph originally published in "The Heart of the Antarctic," Volume I, by E. H. Shackleton, 1909.
(Source: National Oceanic and Atmospheric Administration/Department of Commerce.)
