skiers get on the helicopter and are flown to a landing zone on the mountain. skis, snowboards and ski poles are generally carried in an exterior basket on the helicopter. snow conditions on the mountains vary considerably over the course of the winter. the snow is subjected to sun, wind, temperature variation, and new snowfalls. snow conditions change almost every day. risks include those of backcountry skiing, such as avalanches and tree wells, plus those of helicopter flight. risks are lessened by using experienced pilots and certified guides. also avalanche transceivers, avalanche air-bags, and radios make it safer.