Gary has had two parallel career paths of adventure-travel guiding and academia. He has led treks for more than 20 years in the Himalayas, primarily in Nepal but also in India, Pakistan, Bhutan, and the Chinese Karakoram. He has guided oar-powered Grand Canyon rafting trips for more than 35 years, as well as foreign river expeditions in a dozen countries from Ethiopia to Papua New Guinea to Canada. Gary has also sea-kayaked in Alaska, Hawaii, Thailand, Malaysia, Tasmania, and the Virgin Islands. He speaks Spanish and Nepalese. Gary received his PhD in Natural Resources from the University of Arizona, studying human impacts on upper-elevation forests in Nepal. He teaches occasional courses in biology and ecology as an adjunct assistant professor at the University of Wyoming in Laramie. His favorite activities, though, are exploring new regions and sharing his love of the natural world on long outdoor adventures in wild places.