Yellowstone National Park

Dunraven Pass - Mount Washburn Trail

Summit BaggersPhotographersWildlife Watching
4.5 mi Distance
3-6 hours Estimated Time
Out & Back Trail Type

What to Expect

This is Yellowstone's most rewarding summit hike for the effort involved — a steady, switchbacking climb from Dunraven Pass up to the fire lookout perched atop Mount Washburn at over 10,000 feet. The trail starts in subalpine forest but quickly opens up above treeline, where the real show begins: sweeping views of the Yellowstone caldera, the Absaroka Range, and on clear days, the Tetons poking up on the southern horizon. The wide, well-maintained path (an old road, really) means no scrambling, but the relentless uphill grade and thin air will remind your lungs this is real mountain hiking. Bighorn sheep regularly graze along the upper slopes, unfazed by hikers. The summit shelter offers interpretive displays and a wind break you will absolutely want. This trail is perfect for hikers who love big panoramas without technical terrain.
Summit BaggersPhotographersWildlife WatchingDay HikersWildflower Season

Safety Advisory

Lightning is the real danger here. You are fully exposed above treeline for roughly half the hike, and the summit is the highest point for miles. If you hear thunder or see dark clouds building, turn around immediately — do not push for the top.

Grizzly bears frequent the Mount Washburn area, especially in fall when they forage for whitebark pine nuts. Carry bear spray, make noise on blind corners, and check the trailhead for recent bear activity postings.

Trail Details

Distance 4.5 miles round-trip
Estimated Time 3-6 hours
Trail Type Out & Back
Pets Not allowed
Season Year-round
Trailhead Dunraven Pass - Mount Washburn Trail

Pro Tips

Trail Tip

Start by 8 AM — the Dunraven Pass parking lot fills by mid-morning in July and August, and afternoon thunderstorms roll in like clockwork above treeline.

Trail Tip

There is zero water on this trail, so carry at least two liters per person. The combination of altitude, sun exposure, and steady climbing will drain you faster than you expect.

Trail Tip

Bring binoculars for the summit — you can spot the Grand Canyon of the Yellowstone, Yellowstone Lake, and sometimes identify individual Teton peaks. The bighorn sheep on the upper switchbacks are also worth a closer look through glass.

Photos

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