TrailAvalanche Peak Trailhead 5N2
4.5-mile out-and-back; 2,100 ft gain. Relentless climb with a true summit payoff.
2,100 ft elev. gain
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Gneiss Creek
Last Updated: January 2026
Distance
13.9 mi
Elevation Gain
200 ft
Est. Time
Backpacking: ~2 days. Day hikers: time varies with how much of the trail you cover; plan for long day or overnight.
Route Type
Point-to-Point
Dogs Allowed
No
Best Season
July–September
Overview
About This Trail
Mission Brief: Gneiss Creek is a 13.9-mile point-to-point dirt trail with minimal vertical gain. It runs through backcountry terrain where bears, bison, and elk roam; creek crossings demand focus and proper footwear. Plan for a two-day backpack or a long day for fit hikers; bring water treatment and navigation gear. Hydration, bear safety, and shuttle logistics are non-negotiable.
Highlights
Difficulty Level
Moderate
Trail Highlights
Long dirt traverse with wildlife opportunities and evidence of 1988 fire regeneration; multiple creek crossings and open meadow sections for expansive travel
Insider Tips
• Plan a shuttle or two-vehicle logistics for a one-way hike • Beware bear area closure window (Mar 10–Jun 30); adjust timing • Start early or late for wildlife activity; pack warm layers for morning/late day • Water filter and navigation tools are non-negotiable
Best Season to Hike
July–September
Hiking Tips
- Carry 2 liters of water minimum
- Filter water at creeks along the trail
- Carry bear spray and know how to use it
- Trekking poles help on creek crossings
- Bring map/compass and navigation tools
Family Info
Length and wildlife risk make it challenging for young children; better for experienced hikers or older, capable kids
What Hikers Say
Hikers report a long, low-gain trek with ample wildlife opportunity and solitude; distance requires good endurance and solid navigation, especially with creek crossings and bear risk. Water treatment and bear safety are essential, and a shuttle is part of the logistics for a one-way plan.
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ℹ️ Data Sources
National Park Service — Yellowstone National Park fees, hours & conditions (checked 2026-07-05) yellowstoneexplored.com hikingproject.com outsidebozeman.com trailforks.com recreation.gov litwick.net thepedalproject.org wildlandtrekking.com yellowstone.co yellowstoneguidelines.com planyellowstone.com yellowstonenationalparklodges.com yellowstone.org bozemanchamber.com backcountrypost.com naturalatlas.com Current time information in Park County, US. yellowstonepark.com destinationyellowstone.com Google Reviews YourNPGuide Editorial
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