Trip Idea

Skiing and Snowshoeing in the Mammoth Area

Two skiers traveling in front of a orange-colored hot spring terrace.

Topic(s)	Trails
Activities	Skiing
Type	Kid Friendly, Active, Solitary/Remote, Outdoors, Group Friendly
Parks	Yellowstone National Park

Trail Ratings

Trails are rated by the National Park Service with ratings specific to Yellowstone National Park. We strongly encourage all skiers to inquire at a visitor center or Yellowstone Park Lodges Ski Shop before beginning their first ski trip. Weather conditions may cause icy trails, deep snow, or barren sections, and in some instances make trails difficult to follow, increasing the difficulty of a trail. Trails are not groomed or checked daily.

Easiest: Skiers need basic knowledge and limited experience in the diagonal stride, snow-plow, and side- stepping. Trails may have short downhill and uphill stretches.
More Difficult: Skiers need to be able to ski varied terrain requiring turning, snow-plowing, herringboning, and diagonal stride. Much of the terrain is forested with limited space to maneuver. Not recommended for anyone who does not have a solid knowledge of cross-country skiing.
Most Difficult: Skiers need to be experienced. Trails are hazardous and terrain is frequently extreme. Turns are often sharp and linked together with no room to snow-plow or herringbone.
Backcountry: Backcountry trails are marked on these maps with dashed black lines and should only be attempted by experienced parties with appropriate equipment. Many of them are difficult to find and follow as they have not necessarily been skied recently. Many go through avalanche-prone areas that are not marked. Caution: Do not attempt to travel any backcountry trails without good topographical maps and current trail conditions.

Upper Terrace Loop Ski Trail
- Activity Fee: No (Entrance fees may apply)
- Reservations: No
- Activity: Skiing
- Pets: No
- Location: Mammoth Hot Springs
- Duration: 30–60 Minutes
- Season: Winter
- Time of Day: Day, Night
The Upper Terrace Loop Ski Trail is a groomed 1.5 mile (2.4 km) loop that ranges from easy to more difficult due to a steep downhill section if traveled to the right from the trailhead. This trail takes you around the Upper Terrace Drive to views of impressive thermal features, the Mammoth Hot Springs Historic District, and distant snow-covered mountain ranges.
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Bunsen Peak Road Ski Trail
- Activity Fee: No (Entrance fees may apply)
- Reservations: No
- Activity: Skiing
- Pets: No
- Location: Mammoth Hot Springs
- Duration: 2–3 Hours
- Season: Winter
- Time of Day: Day
The Bunsen Peak Road Ski Trail is a one-way skier-tracked easiest to most-difficult trail with two trailhead options. This ski affords views of Swan Lake Flats, the Gardner Canyon, and the Gallatin Mountains.
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Yellowstone National Park
Sheepeater Ski Trail
- Activity Fee: No (Entrance fees may apply)
- Reservations: No
- Activity: Skiing
- Pets: No
- Location: Mammoth Hot Springs
- Duration: 2–3 Hours
- Season: Winter
- Time of Day: Day
The Sheepeater Ski Trail is a skier-tracked, easy, one-way 5 mile (8 km) trail that provides scenic views of Swan Lake Flats.
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Yellowstone National Park
Snow Pass Ski Trail
- Activity Fee: No (Entrance fees may apply)
- Reservations: No
- Activity: Skiing
- Pets: No
- Location: Mammoth Hot Springs
- Duration: 2–3 Hours
- Season: Winter
- Time of Day: Day
The Snow Pass Ski Trail is a 4.2 mile (6.76 km), skier-tracked, one-way, easiest to most-difficult, ski that takes skiers through a steep heavily forested area to a semi-flat wide open area with views of Swan Lake Flats.
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Indian Creek Loop Ski Trail
- Activity Fee: No (Entrance fees may apply)
- Reservations: No
- Activity: Skiing
- Pets: No
- Location: Mammoth Hot Springs
- Duration: 1–2 Hours
- Season: Winter
- Time of Day: Day
The Indian Creek Loop Ski Trail is a skier-tracked, easy, 2.2 mile (3.5 km) ski trail suitable for any ability level.
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Yellowstone National Park
Bighorn Loop Ski Trail
- Activity Fee: No (Entrance fees may apply)
- Reservations: No
- Activity: Skiing
- Pets: No
- Location: Mammoth Hot Springs
- Duration: 2–3 Hours
- Season: Winter
- Time of Day: Day
The Bighorn Loop Ski Trail is a 5.5 mile (8.85 km), easy to more difficult trail taking skiers on a loop through rolling terrain with outstanding winter landscape views.
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