Team Member Biography
Peter Whittaker
Photo: Peter Whittaker
Photograph by Jake Norton

Co-owner of Rainier Mountaineering, Inc., the largest guide service in the U.S., Whittaker has been a mountain guide for more than 25 years. Born into what could rightfully be called the first family of American mountaineering, he has more than held his own, outfitting and guiding more than 70 expeditions on all seven continents. In 1995, he organized Expedition Inspiration and led a group of breast cancer survivors to the summit of Aconcagua, raising $2.3 million for breast cancer research. He has hosted Trailside, an Emmy-nominated adventure TV series on public television. He continues to lead trips all over the world.

Climbing Highlights

  • 226 summits of Rainier (14,410 feet/4,392 meters)
  • 13 expeditions on Kilimanjaro (19,340 feet/5,895 meters)
  • 8 expeditions to Aconcagua
  • 5 expeditions on Ecuador volcanoes: Chimborazo (20,703 feet/6,310 meters); Cotopaxi (19,348 feet/5,897 meters)
  • 2 summits of Denali (20,320 feet/6,194 meters)
  • 2 summits of Vinson, Antarctica
  • Member of 1984 and 1987 Everest expeditions (reached 25,500 feet/7,772 meters & 27,000 feet/8,230 meters)


  • American Mountain Guides Association—Certified Alpine Guide Wilderness First Responder
  • Avalanche Level II
  • Leave No Trace, Master Trainer

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