Gannett Peak (Wyoming)
What it takes
Gannett Peak (13,804 ft / 4,209m) is Wyoming's highest point and one of the most remote state highpoints in the Lower 48. A 5-6 day expedition through the Wind River Range involves a 20+ mile approach through wilderness, glacier travel on the Gooseneck Glacier, and a technical summit ridge. Fewer than 500 people summit annually — compared to 30,000 on nearby Grand Teton. The approach alone is a backpacking adventure; the summit is a mountaineering objective.
What Makes This Hard
The Real Challenge
The approach. Before you even start climbing, you hike 20+ miles through wilderness with a full expedition pack (40-50 lbs). The Ink Wells and Bonney Pass routes involve boulder fields, river crossings, and snow travel just to reach base camp. By the time you attempt the summit, you've already done 3 days of hard backpacking. Most people train for the summit and forget about the approach.
Where People Struggle
Pack weight on the approach. You need 5-6 days of food, glacier gear, camping equipment, and cold-weather layers. If your base pack exceeds 45 lbs, the boulder fields on day 2 will break you. Go ultralight on everything except safety equipment.
Key Numbers
- Summit
- 13,804 ft (4,209m)
- Approach
- 20+ miles one way
- Duration
- 5-6 days round trip
- Annual summits
- ~500 people
Gear Essentials
- Mountaineering boots + crampons + ice axe for glacier travel
- Lightweight expedition tent (Wind Rivers get afternoon thunderstorms daily)
- Bear canister — required in the Wind River wilderness
- Shuttle or porter for equipment — Cold Springs approach saves 10 miles but requires tribal permit ($100)
Terrain & Conditions
Trail, then cross-country through boulder fields and snow. Glacier travel on the Gooseneck Glacier with crevasse hazard. Summit ridge is exposed Class 3 scrambling. Afternoon thunderstorms are nearly daily in July-August — plan early starts. Mosquitoes are brutal in the lower valleys June-July.
How Gannett Peak (Wyoming) Compares
- Harder than
- Glaciated Peak / Baker (longer expedition, heavier pack, more remote)
- Comparable to
- Technical Mountaineering / Rainier (similar glacier skills, more remote approach)
- Easier than
- Expedition Peak / Aconcagua (lower altitude, shorter duration)
Practical Logistics
- Best time to go
- July-August (snow has consolidated, passes are open). Late July is optimal.
- Permit / registration
- Wind River Ranger District wilderness permit (free, self-issue at trailhead). Cold Springs approach requires Wind River Reservation tribal permit ($100).
- Getting there
- Fly to Jackson Hole WY. Drive to trailhead (Elkhart Park: 2.5 hrs; Cold Springs: 4 hrs via Lander).
- Accommodation
- Backcountry camping only. Hotels in Pinedale or Lander before/after.
- Typical cost
- $3,000-$5,000 guided; $500-$800 self-guided (food, permits, shuttle, gear)
- Guide
- Recommended unless experienced in glacier travel and wilderness navigation
Prerequisites
Complete these adventures first to build the fitness, skills, and experience this adventure demands.
Baker-class glacier experience proves you can handle rope teams and crevasse terrain.
Multi-day backpacking fitness is essential for the 20+ mile wilderness approach.
Booking Info
Book 4+ months ahead
JHMG (Jackson Hole Mountain Guides) and Wind River Climbing Guides run guided trips July-August. Book by March.
Permit required — apply 1+ months ahead