Basic Mountaineering School graduation or approval of leader is required. Designates peaks of any classification as dangerous. Basic Mountaineering School graduation or approval of leader is required. Technical trips are open to all qualified climbers. Trip descriptions give a general idea of ability required.
Registration is commonly with the leader, who determines the qualifications needed for the trip.
The limits of the levels of difficulty within each hiking and climbing classification are defined as easy, moderate, or difficult by the trip scheduler and leader according to the pace, terrain, and, in the case of rock climbing trips, the Yosemite decimal system, during the season that the trip is scheduled. A backpack must be considered a separate trip classification. Advanced trips are generally over 10 miles on very difficult terrain. Participants must be able to break trail for three miles and must have excellent Nordic downhill ability . Ten essentials are required plus down jacket with hood, wind pants, shovel, map, extra food.