Some more info for bouldering in the Mammoth area at Clark Canyon on my blog;
http://summitorplummet.blogspot.com/2011/09/clark-canyon-bouldering.html
and more info about Mammoth Bouldering on DeadpointMagazine.com;
http://www.dpmclimbing.com/climbing-gear/view/new-guidebook-mammoth-bouldering