For the first time ever, HP40 now has a complete and accurate guidebook to help climbers interpret this incredible area! Local climber and boulderer Adam Henry, who was amongst the first people to discover HP40 for its bouldering wealth, and who along with many others developed the vast majority of problems in the park, shares his intimate knowledge of the problems, the park, and its history in this comprehensive guidebook. Complete with tons of arial topo maps, color boulder photos, detailed descriptions of every problem and area, and peppered throughout with the pointy southern wit of its author, Horse Pens 40 Bouldering is the must have for longtime locals and first time visitors alike, and easily puts the black and white, hard to interpret pamphlets in their place. The book is also filled with the inspiring color action photography of Jeff Wales, Andrew Kornylak, Dan Lubbers, Stephan Denys, Chris Luker, Dan Brayack, John Barr, Cooper Roberts, Jamie Emerson, and many others.