Aaron Billin, MD, is a past president and 12-year member of the Board of Directors of the Wilderness Medical Society and a master fellow of the Academy of Wilderness Medicine. He practices emergency medicine and has been medical director of various EMS services in Wyoming. He is active in search & rescue, teaching wilderness medicine, and peer review for the medical journal Wilderness & Environmental Medicine. He is a clinical instructor in the Department of Family Medicine at the University of Washinton School of Medicine. Dr. Billin resides with his wife, Karen, in Cody, Wyoming.