The Mallard Creek Ski Trail is a 12 mile (19.3 km) round-trip, most-difficult, skier-tracked trail that takes advanced skiers over challenging terrain. This trail branches off the Mallard Lake Trail 0.2 miles (0.3 km) before the lake. From the junction, the trail climbs steeply up switchbacks to a ridge overlooking Mallard Lake and then heads northwest for approximately 4 miles (6.4 km). The trail has many challenging turns and crosses numerous deep gullies. Sections of the trail may be hard to follow and may not be well marked. Only advanced skiers should attempt this trail. The return to Old Faithful is another 4 miles (6.4 km) over gently rolling terrain along the Powerline Trail and through the Upper Geyser Basin.
Notes: CAUTION: recommended for advanced skiers only due to steep terrain. Bison and elk frequent this trail. Federal regulations require you to stay at least 100 yards (91 m) away from bears and wolves, and at least 25 yards (23 m) away from bison and all other wild animals. Stay on boardwalks and designated ski trails. The ground is unstable in hydrothermal areas.
Check out the ski trail details and accessibility information at the bottom of this page.
This skier-tracked most difficult trail includes steep terrain. The trail elevation gain/loss is 800 feet. Service dogs allowed.
More On Ski Trails in Yellowstone
Ski Trail Information
With miles of ski trails to enjoy, start your trip planning here and confirm conditions at the Mammoth or Old Faithful Bear Den Ski Shop.
Prepare for cold air, deep snow, and slippery boardwalks.
Ready to brave the cold? Check out our tips for enjoying Yellowstone in winter.
Last updated: February 18, 2021