Since John Wolfe wrote a climber’s guidebook in 1970, Intersection Rock has become one of California’s most analyzed crags. Several tracks have been plotted by and for climbers on all four faces of Intersection Rock. The routes range in difficulty from 5.3 to 5.1b. If this popular spot is too crowded for you, there are approximately 8,000 other documented climbing routes in the park. A good book by Randy Vogel is “Classic Joshua Tree Routes and Bouldering.” There are several other climbers’ guidebooks available online.