Viviana Callahan was born and raised in Patagonia, Chile. She has been mountaineering since age 18 and guiding professionally for over 12 years in the Chilean Andes and Aconcagua, Argentina. Viviana is a NOLS mountain instructor, level 2 (training standard UIAA) ENAM, and Wilderness First Responder. She has done multiple expeditions around the world, including the first Chilean Women’s Expedition to Dhaulgiri in the Himalaya, several first ascents in the South and North Ice Field of Patagonia, Cordillera Blanca in Peru, the Alps, Pyrenees, Alaska, and the Andes. Viviana leads our Aconcagua and Patagonia Adventure trips.