Park wardens train at Banff National Park to improve avalanche patrol and rescue

Pan of mountains at Banff National Park in Canadian Rockies / various shots park wardens practicing cross-country skiing techniques / MS two men in skis climb small hill in deep snow / MS two men move in snow, one on skis and one on snowshoes / CU man passing by / men on skis climbing mountain side / mountain goats running away, one stops and watches / men on top of mountain / man tethered with rope sawing big chunk of snow at mountain's edge / two tethered men jump on chunk, it gives way / men go down secured by ropes, one hanging halfway over edge / various shots snow hurtling down mountain / mountain side / skiers skiing down mountain / rescue party on skis walking up mountain / men pushing poles into snow drift, trainer stands above them watching / MS men pushing poles / man shoveling snow away from buried skier / MS emergency stretcher made with skis being prepared / MS buried skier being put on stretcher / men move stretcher, now a sled, downhill using ropes / CU legs of man in front of sled / men pulling sled across untouched snow / man pulling sled skis down to snowmobile, others follow / men load stretcher into snowmobile / snowmobile takes off / snowmobile arriving at hamlet / Note: exact day not known