Horse Pens 40 is an international destination for boulderers, with acres of bulbous sandstone faces, blunt prows, tall slabs, steep overhangs, and challenging water grooves. For a small day fee ($5/day/climber), the owners, Mike and Gina Shultz, have been so kind to open up this once closed gem of a boulder field to the public. There are over 100 problems from V-3-V5, and just as many between V6-V8, all within earshot of the parking lot, campgrounds ($10/person/night) and the general store. All amenities, including rental climbing gear is available. Especially notable problems are: Genesis (V3), Bumboy (V3), Man with the Slow Hand (V4), Millipede (V5), Moon Arete (V6), Chattanooga Plow (V7), Skywalker (V8), Slider (V9) and God Module (V11).