"I've always accepted challenges, and I've always loved risk," he says. And that's what drove him to pursue Everest. Two years after he finished his mountaineering course, he returned to Alaska, this time to climb Mt. McKinley. While he was there, another climber told him about the seven summits, and Hanna saw his goal before him. "I thought, God, that's a challenge, that's a threat," he says.
Fewer than seventy climbers have successfully completed all seven summits, and none of them were even close to Hanna's age, but he has set a fast pace. Between 1990 and 2002, he traveled on more than twenty climbing expeditions, knocking off McKinley (20,320 feet) in 1991, South America's Mt. Aconcagua (22,840) in 1992, and Australia's Mt. Kosciusco (7,130) in 1994. In 1995, he topped Africa's Mt. Kilimanjaro (19,340) and Antarctica's Vinson Massif (16,067), and in 1999 added Europe's Mt. Elbrus (18,481). For good measure, he threw in Indonesia's Carstensz Pyramid, which at 16,023 feet is the tallest peak in Oceania.
Only Everest eluded Hanna. His first attempt, in 1993, was more educational than satisfying.