R Mark EllingR. Mark Elling is certified by the Professional Ski Instructors of America as a Level III Alpine Instructor and Level II Backcountry Guide. He has worked full-time in the ski industry since 1989, including six seasons as a guide at Mount Baile Snowcat Skiing and assistant director of the ski school at Montana Snowbowl. Since 1996, he has been a product test for Ski and Skiing magazines, and he helps teach professional bootfitting seminars for Masterfit University. He has written articles for Skiing, The Professional Skier, and many other travel and sports publications. Read More Read Less