Bob Gaines has been a professional rock climbing guide since 1983 and is the owner of Vertical Adventures Rock Climbing School, voted the top rock climbing school in America by Outside magazine. Bob has worked extensively in the film business as a climbing stunt coordinator. He was Sylvester Stallone's climbing instructor for Cliffhanger and doubled for William Shatner in Star Trek V, as Captain Kirk free-soloing on El Capitan. Jason D. Martin is a professional mountain guide, writer, and a senior guide at the American Alpine Institute. He has guided in Red Rock Canyon, Joshua Tree National Park, the Cascades, the Sierra, the Alaska Range, in Canada's Coast Range and in the Andes of Ecuador, Bolivia and Peru. Jason is an AMGA Certified Rock Guide and an AMGA Single Pitch Instructor program provider. In addition to working as a guide, Jason is a playwright, film critic and outdoor adventure writer. He co-authored Washington Ice: A Climbing Guide and authored Fun Climbs Red Rocks: Topropes and Moderates.