Mallard Lake Ski Trail (U.S. National Park Service)

A lone skier breaks trail along the Mallard Lake Trail in the forested section near the trailhead.

The Mallard Lake Ski Trail is a 6.8 mile (10.9 km) round-trip, skier-tracked, more difficult trail taking skiers on a steep climb to views of Mallard Lake. Beginning near Snow Lodge, the trail follows Mallard Lake/Kepler Cascades Trail across the Firehole River bridge. At the trail junction, the trail goes left through the forest and climbs to Mallard Lake, with some steep sections and sidehills. Beware of avalanches. This trail is not recommended in very icy conditions. The Mallard Creek trail junction is approximately 0.2 miles (0.3 km) before the lake. Return downhill to Old Faithful the same way.

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.

The duration will vary depending on skier fitness level, snow conditions, and length of time spent along the trail.

More difficult

Qualified service animals are welcome throughout the park and in all park facilities. However, they must be leashed and under your control at all times. This trail requires a backcountry access permit for service animals.

Entrance fees may apply, see Fees & Passes information.

The trail begins near Snow Lodge following the trail that leads to Mallard Lake/Kepler Cascades across the Firehole River Bridge.

This skier-tracked more difficult trail includes steep terrain. The trail elevation gain/loss is 760 feet. Service dogs allowed with backcountry access permit.

Mountain views from the saddle at the top of the Divide Ski Trail.

Skiing and Snowshoeing in Old Faithful

The Old Faithful area offers a variety of ski and snowshoe trails suitable for all ages, abilities, and interests.

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.
Winter Safety

Prepare for cold air, deep snow, and slippery boardwalks.
Winter Wonderland

Ready to brave the cold? Check out our tips for enjoying Yellowstone in winter.