East of Littleton, the Twin Mountain area has an extensive network of groomed snowmobile trails. These trails are maintained by the Twin Mountain Snowmobile Club.
The portion of Corridor 11 known as the Base Station Trail (Cog Base Road) will be permanently relocated from the actual road that has been used in the past as a trail, to a new trail that will basically parallel the paved road. The Cog Base Road will be opened to Motor Vehicle Traffic year round effective immediately. The new snowmobile trail is being constructed at this time from the Bretton Woods condo area to the junction of Jefferson Notch Road (which will still be used as a snowmobile trail in winter). The new trail and paved portion of the road will be watched closely for enforcement and safety issues this coming season.
While snowmobiling Twin Mountain, all snowmobiles must have a New Hampshire OHRV registration decal. To obtain a NH OHRV registration decal, you will need to show proof of member ship in a New Hampshire snowmobile club, such as the Twin Mountain Snowmobile Club.
Overall, Twin Mountain is the 3rd most popular snowmobile trail of all 31 snowmobiling in New Hampshire.