Mount Washburn - 6mi Strenuous Hike

A trail crosses a ridgeline above forests and meadows.

Mount Washburn is a strenuous alpine hike that delivers 360-degree views and an active fire lookout at the summit. The 6-mile round-trip ascent rewards effort with panoramic vistas, bighorn sheep, and alpine wildflowers. Expect serious physical challenge, zero water access, lightning hazard above treeline, and grizzlies in fall seeking whitebark pine nuts. Mandatory: hike in groups of 3+, make constant noise, carry bear spray, and summit before afternoon electrical storms form.

Quick facts

Distance Miles: 6
Route Type: Out-and-back
Difficulty Level: Strenuous
Estimated Time: 3-6 hours

Trail profile

Distance Miles: 6
Route Type: Out-and-back
Difficulty Level: Strenuous
Estimated Time: 3-6 hours
Trail Features: Mount Washburn summit
360-degree panoramic views
Active fire lookout shelter
Bighorn sheep
Alpine wildflowers
Interpretive exhibits
Trail Highlights: Summit the Mount Washburn fire lookout with 360-degree views across the central Yellowstone high country. Spot bighorn sheep and alpine wildflowers. Interpretive exhibits and staffed shelter at the active lookout tower provide protection and education at the peak.

Trailhead & access

Trailhead Location: Dunraven Pass Trailhead, 4.5 miles north of Canyon Village
Shuttle Required: 0
Shuttle Details: Not applicable. Shuttle service not available.

Permits & conditions

Permit Details: Not required. Day hiking access included with park entrance.
Fees: No additional trail fees. Yellowstone park entrance: $35 per vehicle (valid seven consecutive days).
Trail Status: Open
Seasonal Closures: Typically closed November through April due to snow and winter road conditions. Most park roads reopen mid-April, weather dependent.

Facilities & rules

Restrooms At Trailhead: 0
Water Sources: None. Zero water access anywhere along the trail. Carry all water needed (2-3 liters minimum).
Accessibility: Steep alpine trail with exposed sections above treeline. Not wheelchair accessible. NPS notes this hike is not recommended for those with heart or respiratory problems due to high altitude.

Safety & strategy

Hazards: Lightning above treeline
Grizzly bears in fall
No water access
High altitude exposure
Steep terrain
Thin air
Hazard Details: Lightning strikes above treeline are a serious hazard; afternoon storms frequent in summer and fall. Grizzly bears in fall actively seek whitebark pine nuts—group hiking and bear spray are mandatory safety measures. Zero water sources means carrying everything uphill. High altitude affects respiratory systems; NPS advises against this hike for those with cardiac or respiratory problems.
Best Season: Summer and Fall
Best Time To Visit: Start at dawn to beat afternoon lightning storms. June through September offers stable weather; fall (August-September) brings grizzly bears seeking whitebark pine nuts, especially early morning. Plan to summit by midday and descend before 2 PM when electrical storms peak above treeline.
Tips Advice: Carry 2-3 liters of water minimum—zero sources along the trail
Hike in groups of 3+ people and make constant noise (bear bells required)
Carry bear spray rated for Yellowstone grizzlies and know how to deploy it
Start before 6 AM to summit and descend before afternoon lightning storms develop
Bring trekking poles for the knee-destroying descent
Sunscreen, hat, and UV-blocking sunglasses non-negotiable at this altitude
If lightning is visible or thunder audible, abandon summit and descend immediately
NPS specifically warns: not recommended for those with heart or respiratory problems

More details

Park Area: Canyon Area
Dogs Allowed: No
Biking Allowed: No
Shade Level: Partial shade in lower sections. Full sun and complete exposure above treeline.
Emergency Contacts: 911 from areas with cell service. Nearest ranger station: Canyon Village, 4.5 miles south.
Map Recommended: 1
Snow Dates: Typically November through March, weather dependent. Most park roads reopen mid-April.
Insider Tips: Hike in tight groups of 3+ and make constant noise—required for bear safety in this area
Bring 2-3 liters of water; there are zero sources along the entire trail
Carry bear spray rated for Yellowstone grizzlies and verify functionality
Start before 6 AM to summit and descend before afternoon lightning storms develop
Sunscreen, hat, and UV-blocking sunglasses are non-negotiable at this altitude
If lightning appears or thunder audible, descend immediately—absolutely non-negotiable
This hike is unsuitable for anyone with documented cardiac or respiratory problems per NPS
Recent Updates: The August 2019 closure note for trail improvements is historical. No recent closures noted beyond standard seasonal road access windows (mid-April through early November, weather dependent).
Family Friendly Notes: Not family-friendly. High elevation causes breathing difficulty. Lightning above treeline, grizzly bears in fall, zero water, and steep exposed sections make this unsuitable for young children. NPS specifically advises against this hike for anyone with documented cardiac or respiratory conditions.
Nearby Facilities: Canyon Village, 4.5 miles south: fuel, lodging, food, visitor services. Canyon Campground available in park. Supplies and ranger assistance at park visitor centers.
Review Summary: Hikers consistently report this is a relentless altitude climb rewarded by summit views and an active fire lookout shelter. The lack of water, exposure to lightning, and seasonal grizzly bears demand serious preparation and fitness—this is not a casual walk or suitable for untrained hikers.

Frequently asked questions

Is this trail actually that hard?

Yes. Strenuous classification is accurate. Most hikers spend 3-6 hours on it. High altitude affects even fit people—acclimatization and fitness matter.

Are there really grizzly bears here?

In fall, absolutely—they're actively seeking whitebark pine nuts. Hike in mandatory groups of 3+, make constant noise, carry bear spray. Spring/summer risk is lower but never zero.

What about water on the trail?

Zero water access anywhere. You must carry all 2-3 liters you'll drink. No refill opportunities exist along the entire route.

Can I hike this solo?

No. NPS and bear safety protocols require groups of 3+ minimum, especially in fall. Never solo this trail.

What if a storm hits while I'm summiting?

Lightning above treeline kills. If you see lightning or hear thunder, turn around immediately and descend. This is non-negotiable and takes priority over summit goals.

Do I need permits or reservations?

No permits required. Just pay park entrance fee ($35/vehicle for seven consecutive days). But arrive early—this is a popular trail.

Can an average person do this?

Altitude is the real killer, not distance. If you have heart/respiratory issues, NPS recommends skipping it entirely. Otherwise, slow pace and steady effort works for fit, acclimatized people.