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Clyde eating Twizzlers.

Clyde started out life as a “lab/pit bull mix,” found roaming the meanstreets of Taos, New Mexico, with is his sister, Bonnie, and brought toBoulder, where he was adopted. Then, he grew … and grew … and grew.Today, Clyde is a two-year-old 85-pound Plott Hound, known for his bear- andboar-hunting skills. The dude loves Twizzlers and roaming the office rootingthrough trash cans.

Film: How Matt Cornell Free Soloed One of America’s Classic Hard Mixed Routes

"The Nutcracker" explores the mental challenges of solo climbing and the tactics Cornell used to help him send the route.