Page:Canadian Alpine Journal I, 1.djvu/189

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Canadian Alpine Journal
Boulder Clay—A stiff, tenacious clay containing boulders of all sizes; found in the moraines of a glacier; corresponds to "till."
Cache—A hiding place; a store of provisions, etc., hidden for future use.
Cirque—A circle of rock peaks.
Col—The crest of a neck or pass between two mountain peaks, usually though not necessarily covered with snow.
Confluent Glacier—One, tributary to a trunk glacier; generally flowing from a greater elevation.
Cornice, Snow Cornice—An overhanging edge of snow at the crest of a mountain peak or ridge, caused by drifting.
Couloir—A steeply ascending gully, gorge or ravine in the side of a mountain or rock peak; generally, though not necessarily, filled with snow.
Crampon—A steel frame, set with sharp spikes, strapped to the boot to facilitate climbing on ice.
Crevasse—A fissure or crack formed in a snow-field or glacier; caused by non-elasticity of the ice when moving down the uneven surface of its rocky bed. Longitudinal crevasses are formed in the direction of the flow; transverse crevasses at right angles to the flow.
Divide—The height of land between two drainage basins. The watershed.
Dry Glacier—The portion of a glacier showing clear ice through melting of the snow covering.
Firn—Accumulated snow while in a granular condition and before it has been consolidated into the ice of a glacier; corresponds to the névé or snow-field forming the source of a glacier.