Book excerpt: Tuolumne Bouldering is the first guidebook to one of the most scenic summer bouldering areas in the country. More than 20 areas and 200 problems are included, ranging from VB to V12. All the old classics such as The Knobs and Gunks are included, along with many cutting edge new problems. As is standard with a SuperTopo guide, most of these problems were personally climbed by the author.