From the SuperTopo web site (http://www.supertopo.com/packs/washington-pass.html), "Washington Pass Climbing is the most detailed climber’s guide to what is arguably the best alpine rock climbing area in the Northwest. Author Ian Nicholson included 59 of the best routes and climbed every single one to ensure accuracy of the information. Nearly 20 of the routes have never before been covered with a published topo. "