Grand Teton National Park Digital Ski Atlas | 45 Ski Lines, 50+ Waypoints, & Technical Considerations Fully certified mountain guide Mark Smileyย just created the first ever digital ski atlas for the Grand Teton National Park, WY. Mark is a good buddyย from guiding on Mt. Rainier, WA back in the day (and our current roommate) who has skied 36 of the 45 lines in the ski guide. ย Mark is also an accomplished professional photographer and filmmaker with […] Industry News SnowBrains | February 22, 2017 0 Comments