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

The Fountain Freight Road is a 4-mile (8-mile round-trip) biking route through the Old Faithful area on a road closed to vehicles. Mostly flat gravel and deteriorating pavement make mountain bikes essential—road bikes will puncture. This is a wildlife corridor: black and grizzly bears, bison, and wolves frequent the area. Plan for water scarcity, arrive early to avoid parking chaos, and stay alert.
Moderate
Scenic ride through thermal valley with access to geyser basin views; strong wildlife viewing opportunities with bears, bison, and thermal features visible
• The north parking area is the secret move—it's half the crowds and the ride is quieter. • You can spot geyser plumes across the valley; bring binoculars for thermal feature watching. • False summits and turns can be deceiving; pace yourself for the full 8 miles. • The road surface gets rougher in the middle section; walk if needed. • If you see bison on the road, turn around and wait; they don't move fast but they're immovable. • Late afternoon (after 4 PM) has fewer crowds and better light, but watch for wildlife activity at dusk.
Summer and Fall
Trail is relatively flat but requires competent mountain biking skills and physical endurance for the 8-mile round-trip. Young riders need strong supervision and pre-trip bear/bison safety briefing. Not recommended for inexperienced young riders.
Riders note the road condition is rough but manageable on mountain bikes. Parking is the biggest challenge on summer weekends at the south lot. Wildlife is frequent—expect to see or hear bears. Most agree the flat terrain and road closure (no vehicles) make it a solid, relatively safe biking option.
No permits required for biking this road
None available. You must ride in from one parking area or arrange a car shuttle.
Grizzly and black bears forage this area—stay 100 yards away. Bison frequent the valley—maintain 25-yard distance. Wolves present—100-yard distance required. The road is deteriorating with potholes and rough sections. No water sources; dehydration is a serious risk on an 8-mile ride.
Mostly flat gravel and deteriorating paved surface accessible for mountain bikes and hand-cycles with appropriate tires; rough sections may require walking or dismounting
Trail is relatively flat but requires competent mountain biking skills and physical endurance for the 8-mile round-trip. Young riders need strong supervision and pre-trip bear/bison safety briefing. Not recommended for inexperienced young riders.
Old Faithful Visitor Center and services (nearby); limited facilities at Fairy Falls parking area
Riders note the road condition is rough but manageable on mountain bikes. Parking is the biggest challenge on summer weekends at the south lot. Wildlife is frequent—expect to see or hear bears. Most agree the flat terrain and road closure (no vehicles) make it a solid, relatively safe biking option.
" Riders note the road condition is rough but manageable on mountain bikes. Parking is the biggest challenge on summer weekends at the south lot. Wildlife is frequent—expect to see or hear bears. Most agree the flat terrain and road closure (no vehicles) make it a solid, relatively safe biking option."
No. Road tires will puncture on broken pavement and loose gravel. Bring a mountain bike or gravel bike with aggressive tread.
Yes. Black and grizzly bears forage this area. Make constant noise, stay 100 yards away, and back away slowly if you see one. Never approach.
Minimum 3 liters for 8 miles in summer heat. There are no water sources on the trail itself. Dehydration + altitude/exertion = serious risk.
South lot fills by mid-morning on summer weekends. Use the north parking around 8-9 AM or go before 7:30 AM. North lot is consistently less crowded.
Carry a spare tube, patches, and pump. You're 4 miles from the nearest help. Self-rescue is mandatory.
No. Pets aren't allowed. Service dogs only, but they increase wildlife conflict risk.
2-4 hours depending on fitness and stops. Add time if you're gawking at geothermal features or watching wildlife.
6 listings
4 listings
Information is compiled from official sources, verified traveler reviews, and editorial research. Learn how YourNPGuide works →
Notifications