Login with Facebook
Lost River Range

Select Area...
Mt Idaho 
Mt. Borah 
Rest Day:
Nearby Mountain Bike Rides

Saddle Trail
Smooth forested trail with great flow. Near Sun Valley, ID
Lower Oregon Gulch
Smooth and fast - great ascent or descent. Near Sun Valley, ID
Warm Springs Trail
A great descent, out and back, or loop for a beautiful, challenging, fun day. Near Ketchum, ID
Cold Springs Trail
An easier singletrack traverse off Warm Springs Trail. Near Ketchum, ID
Chocolate Gulch Trail
Beautiful views of the Boulder Mountains and flowy singletrack. Near Sun Valley, ID
North Fork Loop
A short, technical loop with great views of the Wood River and the surrounding mountains. Near Sun Valley, ID
From MP's sister site: MTB Project

Lost River Range  

Photos:  Recent | Best | Popular
Elevation: 12,662'
Location: 44.1162, -113.7572 View Map  Incorrect?
Page Views: 3,897
Administrator: Kristine Hoffman (sitewide)
Submitted By: Cory on Sep 26, 2012
You & This Area
Best routes for YOU in this area
Your opinion of this PAGE:    [0 people like this page.]


The Lost River Range is Idaho's tallest. It contains 7 of the 9 12ers in Idaho, including Idaho's highest peak, Mt. Borah.

While the range may be known for loose, chossy rock, there are certainly exceptions to this rule. There are also many alpine ice routes that form up every year, and a massive potential for ski mountaineering.

Getting There 

The range runs north to south. Highway 93 runs along the west side of the range between Arco and Challis. Because of this, access to routes from the west side is fairly straightforward.

The east side, however, is much more difficult to get to. For routes originating on the east side, turn east off of highway 93 onto Doublespring Pass road, about a mile north of the Mount Borah trailhead turnoff. Proceed over Doublespring Pass and then navigate the maze of backroads to your trailhead. These roads are very rugged and a high clearance vehicle is mandatory.

Climbing Season

Weather station 8.3 miles from here

3 Total Routes

['4 Stars',3],['3 Stars',0],['2 Stars',0],['1 Star',0],['Bomb',0]

Featured Route For Lost River Range
Psycho Therapy - Photo by Bob Boyles

Psycho Therapy 5.9+ 5c 17 VI 17 E1 5a AI4 M6  ID : Lost River Range : Mt. Borah
From below, this route appears to be a very ominous dark gash into the middle of the mountain. It is not at all inviting, and yet we found it to be simultaneously irresistible. The route difficulty depends a lot on the conditions. The first ascent was put up in September, when it sounds like the ice was snot thin, and there was a lot of rock climbing on dubious stone. We did the route at the end of May, and found copious amounts of snow and fat ice, although we did still have to climb some ro...[more]   Browse More Classics in ID

Photos of Lost River Range Slideshow Add Photo
the Pahsimeroi Valley runs along the east side of ...
the Pahsimeroi Valley runs along the east side of ...

Comments on Lost River Range Add Comment
Show which comments
- none yet -
Beyond the Guidebook:
The Definitive Climbing Resource
Inspiration & Motivation
to Fuel Your Run
Next Generation Mountain
Bike Trail Maps
Backcountry, Sidecountry
and Secret Stashes
Better Data. Better Tools.
Better Hikes!