Tyson grew up climbing and skiing in Idaho and Wyoming. He began guiding in 1994 with Alaska Mountaineering School on Denali, Timberline Mountain Guides (in Oregon) and Exum Utah. In 1997 he started guiding heli-skiing with Wasatch Powderbird Guides and in 1999 he added rock guiding at Exum Wyoming.

Tyson's passion is ski mountaineering, and he's made Alaskan first ski descents of Denali's 14,000-foot Wickersham Wall (1994), Foraker's Sultana Ridge (1995,) and Mt. Fairweather (1996.) He has led four expeditions to the Himalaya, and two to the Andes including Pik Pobeda, Kyrgyzstan; Muztagh Ata, China; numerous 6,000-meter peaks in Pakistan's Baltoro region;
Lobuche East, Nepal; Huascaran, Peru; and Chimborazo, Ecuador.

Bradley now resides in Salt Lake City's Sugarhouse neighborhood with his wife, Julie Faure, the director of Exum Utah Mountain Adventures, and their son Roman, born May, 2002. He is the author of Backcountry Skiing Utah, a guidebook to skiing in 12 Utah ranges. And he is a lead guide with WPG, and AMS, and a senior avalanche instructor and ski, rock, and alpine guide with Exum.