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.
This steep slabby wall is situated uphill and right of Stash Slab. This wall is really a continuation of Stash Slab. Careful of the loose rocks and debris as this is directly above the approach to the London Wall.
Scramble up the trail from the right side of Stash Slab. Work up right along the base of the slab for 50 feet, above the large cluster of cedar trees.