Wilderness Medicine Training

Lila Cohen, MD

Trauma Surgeon • Clinical Instructor

Lila is a trauma and emergency general surgeon at Concord Hospital and a clinical instructor at Dartmouth’s Geisel School of Medicine. She is an Advanced Trauma Life Support Instructor. She grew up hiking New Hampshire’s 48 four-thousand-foot peaks and later thru-hiked the Appalachian Trail. For the past 20 years she has organized and led hiking and backpacking trips for friends, colleagues, and small groups, and has served as an outdoor leader for youth programs in rock climbing, canoeing, mountain biking, and caving. Her work has taken her from Level I trauma centers to humanitarian surgical missions in Haiti.

Bill Cenna

Pararescueman • AMGA Apprentice Guide

Bill has served for over 20 years in the Army and Air Force as a Pararescueman, earning a Silver Star and two Bronze Stars for combat rescue missions. He is a nationally registered paramedic and holds AMGA apprentice certifications in alpine, rock, and ski guiding, as well as Avalanche Professional Level 2. He has guided and taught wilderness medicine and mountain skills throughout his career across the United States, Europe, Africa, and South America. His approach to instruction is grounded in the same principles that guide his rescue work: preparation, clear thinking, and genuine care for the people in his charge.