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