Marc Yeston

Wilderness Emergency Medical Technician

Marc Yeston

Marc loves to train NOLS Wilderness Medicine students. He took his initial EMT course in 1981 and became a Paramedic in 1983. After working for a few years in Denver, he took his experience into rural areas as a professional ski patroller and EMS instructor in Summit County, Colorado. As a river guide, and later as a river ranger, he had many opportunities to practice wilderness medicine. For the past sixteen years, Marc has worked in a variety of busy backcountry settings as a ranger with the National Park Service. He currently serves as the Canyon District Ranger at Grand Canyon National Park. Marc has been uniformly impressed with the level of care and ability demonstrated by the NOLS Wilderness Medicine graduates he’s encountered during actual backcountry emergencies. His desire to instruct for NOLS Wilderness Medicine came from those experiences. When not instructing, Marc can be found working in the field as a rescuer. He holds a BS in natural resource management and loves seeing the grandeur of the Four Corners region, as though for the first time, through the eyes of his young daughter. “She’s learning to kayak so I’m teaching her about shoulder dislocations.” Marc says.


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