Mt. Russell’s Mithral Dihedral has long been a classic test piece in the Sierra backcountry. While most of the route is mid 5th class the dihedral in the middle is 300 feet of sustained crack climbing. A dihedral is a rock formation that resembles a book half way opened up. The Mithral Dihedral was originally rated 5.9 but the consensus now has it rated closer to 5.10b. On a beautiful crisp early September morning Darryl, Zach, and Kurt went up to give it a go. Here are a couple pictures. The rest can be found here: