PART ONE. John Dufficy is an all-around adventurer. He and Brian sit down to chat about how John got started on his adventurous path, and his summiting of Denali, Aconcagua, and Everest in 1993, on his way to completing the seven summits. This is part one of Brian's conversation with John Dufficy. Stay tuned for more!Big Adventures with Brian Dierker is produced with joy by Big Adventures

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