Registration Permits are required for backcountry camping. Permits are not required for climbing, although voluntary registration at one of the visitor centers is encouraged. Some climbing areas are so remote, however, that a backcountry permit may be required to gain access to them. Please check in and out for safety reasons as well as to provide climbing information for this guide. Equipment Most climbs in the park require traditional gear from small nuts to off width protection.
Many climbs involve a significant approach so check the weather and pack accordingly.
Helmets are highly recommended. The Yosemite decimal system is used to rate difficulty. However, these ratings are based on the opinions of very few climbers and are suspect at best. As in other guide books, R and X ratings will be given when appropriate. A climb with an R rating has the potential for a long or serious fall and is poorly protected.