North AmericaUnited States of America GDMBR: smoky Montana and Glacier National Park by Bicycle Junkies August 30, 2015 ‘The track between Butte and Helena towards Park Lake is the most challenging part of the whole Great Divide Mountain Bike Route’, I read on the Adventure Cycling map. Continue Reading August 30, 2015 10 comments 0 FacebookTwitterPinterestWhatsappEmail