Backcountry Ski Maps Releasing 2 New Maps: Mammoth, CA and Presidential Range, NH Just in time for a winter that will see a huge increase in skiers entering the backcountry, Backcountry Ski Maps are adding two new maps to their already wide selection this Fall – one for Mammoth, CA, and the other for the Presidential Range in New Hampshire. Related: The Backcountry Map Project: Crowdsourced Backcountry Lines to Have Fun and Stay […] Industry News SnowBrains | October 16, 2020 0 Comments