A small glacier on Gibbs Island, Antarctica. Note the crevasses created by brittle fracture. Note that they appear to be covered with snow. In reality the snow is only a cover, which may or may not support a climber's weight. Note also the ridge of loose material along the edge of the glacier.
Rubble falling onto the glacier is dragged along, creating a lateral moraine .
Cirques Standing in Oregon, looking into California from a small cirque. The curvature of the valley and the deposits in the foreground indicate a former glacial valley, but the valley downslope is a typical V-shaped fluvial valley. The glacier extended about to the shadow line. An active cirque on the Antarctic Peninsula. The ridge is only about 500 meters above sea level and a couple of kilometers from the sea.