TrailAvalanche Peak Trailhead 5N2
4.5-mile out-and-back; 2,100 ft gain. Relentless climb with a true summit payoff.

The Fairy Falls Ski Trail is a 10-mile winter ski mission in Yellowstone's Old Faithful area, ranked easy to more difficult depending on conditions and your route choice. Most of the terrain is level with manageable hills near the falls, but the real challenge is the exposure: open snowfields, thermal area crossings where you'll need to unstrap skis and walk, and constant wind. The payoff is icy views of one of Yellowstone's most popular waterfalls and, if you push further, rolling terrain and geyser basin scenery. Expect 6-8 hours of grit.
Easy to More Difficult
Icy views of one of Yellowstone's most popular waterfalls. Optional Powerline Trail extension offers rolling hills and geyser basin views.
• The thermal area crossings are the real hazard—remove skis early and scout before committing. • Bison frequent this section; stay loud and alert. • The Powerline Trail return (more difficult) offers rolling terrain and fewer crowds if you're fit. • Winter days are short; be off the trail by 3 PM. • Call the shuttle service the morning of to confirm conditions. • Snow conditions vary weekly—early season is more stable.
Winter (December - March)
Requires intermediate winter skiing or snowshoeing skills. Families must have experienced skiers. Children need close supervision near thermal features and wildlife.
Winter skiers report the waterfall is spectacular in icy conditions. Consensus: terrain is manageable, but thermal crossings and wildlife encounters demand respect and skills. Most finish in 6-8 hours.
Shuttle reservations are required. Contact park hotels or call 307-344-7311, Toll-free: 866-439-7375, TDD: 304-344-5395.
Skier shuttle reservations may be required. One-way or round-trip shuttles are available. Reservations: 307-344-7311, Toll-free: 866-439-7375, TDD: 304-344-5395. Call the day before to confirm availability.
Bison and elk frequent this trail. Federal regulations require 100 yards distance from bears and wolves, 25 yards from bison. Ground is unstable in hydrothermal areas—stay on trail and boardwalks. Thermal crossings require removing skis and walking. Winter wind chill and snow conditions demand constant awareness.
Level terrain with some hills and bends near the falls. 160 feet elevation gain. Service dogs allowed.
Requires intermediate winter skiing or snowshoeing skills. Families must have experienced skiers. Children need close supervision near thermal features and wildlife.
Winter skiers report the waterfall is spectacular in icy conditions. Consensus: terrain is manageable, but thermal crossings and wildlife encounters demand respect and skills. Most finish in 6-8 hours.
" Winter skiers report the waterfall is spectacular in icy conditions. Consensus: terrain is manageable, but thermal crossings and wildlife encounters demand respect and skills. Most finish in 6-8 hours."
No. You need intermediate ski control to manage the terrain, especially near the falls and on the return. Snowshoers can manage, but they'll be slower. Beginners should try an easier winter trail first.
Yes. Bison frequent this trail and are unpredictable. Stay 100+ yards away. Make constant noise. If a bear or wolf appears, back away slowly and leave the trail. This isn't paranoia—it's wildlife habitat.
You're walking in heavy boots on unstable ground with patches of bare earth and steam vents nearby. It's exposed and unnerving the first time. Scout the crossing before committing and step only where ground is solid.
Yes. The shuttle saves the brutal first miles and gives you more daylight for the falls and return. Pay for it. If it's full, self-propel by 6 AM, not later.
Absolutely. Snow covers trail markers and terrain landmarks. GPS or map + compass is mandatory. Cell service is nonexistent.
Expect 0–20°F with wind chill dropping it further. Layering is survival. Wet gear at 10°F will kill you. Pack spares.
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