During the winter months, Highway 4 (east of closure gate) is groomed for snowmobile use from the SNOPARK just east of Bear Valley to the top of Ebbetts Pass (approximately 15 miles) and to Highland Lakes. This trail has numerous segments, appropriate for different skill levels from novice to expert. As the trail climbs towards the pass, the views are spectacular. Opportunities exist for expert riders to continue riding on the un-groomed portion of the Highway on the east side of Ebbetts Pass. (Note: The groomed portion of Highway 4 is a multi-user trail, and is heavily used by nordic skiers as well as snowmobilers, particularly in the Lake Alpine region.)