Lost River Mountain
12,078 ft | 1 trails | Idaho
12,078 ft
1 routes
Easy
About Lost River Mountain
Lost River Mountain is a 12,078-foot summit in Idaho. The Lost River Mountain Trail is a 0.6-mile hike with about 479 feet of elevation gain. Nearby peaks include Mount Breitenbach, Donaldson Peak and Mount Church. Trail data is sourced from OpenStreetMap contributors (ODbL); verify current conditions with the official land manager before you go.
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Check Current Conditions
Trail conditions change frequently. Check recent reports on AllTrails or NE Trail Conditions before your hike.
Frequently Asked Questions
How long does it take to hike Lost River Mountain?
Hiking time varies by trail and fitness level. Most popular routes take 4-8 hours round trip. Check individual trail descriptions for specific estimates.
Is Lost River Mountain hard to hike?
Difficulty varies by route. There are options ranging from moderate to strenuous. Beginners should start with easier trails and work up to more challenging routes.
Do I need a permit to hike Lost River Mountain?
Most trails don't require permits for day hiking. Some trailheads may require a parking pass or fee. Check current regulations before your visit.
Safety Information
Current Hazards
- Afternoon thunderstorms
- Dehydration risk
- UV exposure above treeline
Turn-Around Time
1:00 PM (2:00 PM summer)
Plan to reach the summit by this time to allow safe descent before dark.
Essential Gear Checklist
* Critical items - do not hike without these
Emergency Contacts
Nearby Peaks
Explore other mountains near Lost River Mountain. Great for peak-bagging or planning your next adventure.
Mount Breitenbach
12,140 ft
Donaldson Peak
12,023 ft
Mount Church
12,220 ft
USGS Peak
11,982 ft
Peak Bagging Tip
Mount Breitenbach is only 1.8 miles away. Consider combining these peaks for a bigger day or overnight trip!