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

A 0.6-mile loop through Yellowstone's geothermal theater. Boardwalks and paved sections dominate, but don't let 'easy' fool you—the southern rim climbs with real grade, and stairs demand focus. You'll see mud pots churning, fumaroles venting, and evidence of the volcanic machinery beneath your feet. Doable for most, but watch your footing on steeper pitches.
Easy, with steep sections
Geothermal features including churning mudpots and active fumaroles. Views of resurgent dome (Sour Creek Dome) and evidence of Yellowstone's active volcanic system.
• The smaller loop around Mud Volcano itself is only about 0.3 miles and fully paved. • Dragon's Mouth Spring is the most photogenic feature; visit first before crowds build. • Early morning light creates the best thermal mist photography. • Trail can be incorporated into longer park drive without major detour.
Spring, summer, fall (main roads open mid-April to early November)
Safe for families with supervision. Young children should be watched closely near geothermal features and steep edges. Steeper southern section may challenge young or unfit hikers; offer hand-holding on the grade.
Hikers praise the compact geothermal experience without major physical commitment. Steep grades and stairs catch some visitors by surprise, but accessibility options exist for most fitness levels. Geothermal features and ease make it a popular quick stop.
No permits required
No shuttle required or available
Geothermal features are extremely hot and unstable—stepping off boardwalk or pavement can cause severe burns. Hydrogen sulfide and other gases may be present; avoid breathing deeply near vents. Steep paved grades and stairs can be slippery, especially when wet or icy. Heights from viewing platforms and rim edges.
Southern loop section is paved but with steep grade. Northern section has stairs. Smaller loop around Mud Volcano and Dragon's Mouth Spring meets ADA guidelines, though stairs lead to Dragon's Mouth viewing platform.
Safe for families with supervision. Young children should be watched closely near geothermal features and steep edges. Steeper southern section may challenge young or unfit hikers; offer hand-holding on the grade.
Fishing Bridge visitor center and facilities 6 miles south; Canyon Village services to the west
Hikers praise the compact geothermal experience without major physical commitment. Steep grades and stairs catch some visitors by surprise, but accessibility options exist for most fitness levels. Geothermal features and ease make it a popular quick stop.
" Hikers praise the compact geothermal experience without major physical commitment. Steep grades and stairs catch some visitors by surprise, but accessibility options exist for most fitness levels. Geothermal features and ease make it a popular quick stop."
Yes. Most kids can handle the 0.6 miles and short duration. Watch them closely near boardwalk edges and geothermal features. The steeper southern section may be slow-going with very young children.
Yes. It's a busy, well-traveled loop in daylight hours. Stay on marked paths and remain alert for wildlife. Avoid hiking in darkness.
The short distance works for most fitness levels, but the paved grade is steep. The smaller paved loop around Mud Volcano itself is easier. Use the railings and take breaks as needed.
Wear sturdy shoes with good grip (stairs and steep grades are slippery). Bring water and sunscreen. A light layer helps manage sun reflection and wind. No technical gear required.
Geothermal features can cause severe burns if you leave the path. Avoid breathing noxious gases. The grade and stairs demand attention. Wildlife (bears, bison) are rare here but possible; make noise.
Early morning (by 8:30 AM) before crowds arrive, and when temps are cooler. Avoid peak midday July-August heat and crowds. Spring and fall offer solitude and mild weather.
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