Williamson Rock is under a temporary closure to all recreational uses, including climbing, pursuant to a ruling by the U.S. Fish and Wildlife Service that the area is critical habitat for the endangered yellow-legged mountain frog. Efforts by the non-profit organization Friends of Williamson Rock, in conjunction with the U.S. Forest Service, are underway to regain climbing access to Williamson. For information on the status of these efforts, and to learn how you can help, contact the Friends of Williamson Rock: williamsonrock.org
This information is a public crowdsourcing effort between the Access Fund,
and Mountain Project. You should confirm closures, restrictions, and/or related dates.
The Cave is the steep wall formed by the western edge of Williamson Rock and the left edge of Ego Buttress. The wall is quite steep and sees little traffic due to the dangerous approach and difficulty of the few routes located here.
Scramble west around the end of the left end of the Ego Buttress. Use extreme caution as this traverse is dangerously loose and exposed.