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        The remote Lemhi Range is home to some of Idaho’s biggest and most majestic peaks, including Idaho's fourth tallest, Diamond Peak (12,197’), rising 6,000’ from the valley floor. The range is also home to what one biker has described as the county’s “most picturesque big mountain riding.” A quick look at the forest service map reveals the huge network of trails in the area, many of which are rideable. Considering both sides of the big range, bikers can choose from a number of spectacular possibilities climbing from the valleys of the Lemhi, the Pahsimeroi, the Little Lost, and Birch Creek.
        Primary Trail Type: Cross-Country
        Land Status: National Forest
        Bull Creek google parking directions
        Activities Click to view
        Region Details
        • 14
        • 10
        • 29
        • 7

        Region Status
        Caution as of 2 days
        Local Trail Association

        Stats

        Avg Trail Rating
        Trails (view details)
        61
        Trails Mountain Bike
        60
        Trails E-Bike
        32
        Trails Gravel Bike
        10
        Trails Adaptive Bike
        7
        Trails Winter Fat Bike
        11
        Trails Horse
        57
        Trails Hike
        61
        Trails Trail Running
        61
        Trails Dirtbike/Moto
        32
        Trails ATV/ORV/OHV
        6
        Trails Snowmobile
        1
        Trails Snowshoe
        1
        Trails Backcountry Ski
        1
        Total Distance
        254 miles
        Total Descent
        55,457 ft
        Total Vertical
        4,840 ft
        Highest Trailhead
        10,283 ft
        Reports
        229
        Photos
        256
        Ridden Counter
        432

        Popular Lemhi Mountains Mountain Biking Trails

        100 4.0 1,066 ft 0 ft 28
        Short section of singletrack that shortcuts the last bit of steep climb on the (Access) Trail. This short section of trail is marked as the designated motorized route for Trail 6183.1, but is not shown on USFS maps.
        95 5.0 5 miles 9 ft 27
        Trail can be ridden in either direction as part of a lopp with that circumnavigates Yellow Peak. Counter-clockwise, is a long sustained difficult climb with a hike-a-bike very near the top, and another cresting the divide to . Either...
        90 4.5 6 miles 2,243 ft 27
        Great high elevation trail that will work you. Take plenty of water or bring a water filter on this ride. Outstanding scenery.
        90 3.7 3 miles 381 ft 23
        This a great ride in some isolated remote country. The downhill on the way out is really fun. The views are great.
        95 5.0 1,775 ft 10 ft 22
        If you've just climbed the , , or to get here, this connector trail provides a bit of well earned easy pedaling for you efforts. Enjoy, as you make your loop or continue on up into the wild Lemhis.
        95 4.5 4 miles 1,806 ft 21
        This singletrack trail provides good access into the high elevations of the Lemhi Range and great loop options with the or Trails. Ridden uphill, the first 2.5 miles provides somewhat technical riding with a steady, rideable grade along...
        80 5.0 3 miles 1,382 ft 15
        This singletrack trail goes through the upper ends of the Park Fork and Lake Fork of the North Fork of Big Creek. It is a tough climb, followed by a nice descent followed by another tough climb if you are riding south to north. Not much...
        5 3.5 4 miles 28 ft 11
        If you are doing the Trail Creek-Cabin Creek loop, it is better to ride up and down Cabin Creek. There are a few technical and steep spots on Trail. You will have to cross which is about 30 feet wide and swift early in the summer.

        Recent Ride Log Activity in Region

        Today
        • 0 rides
        Yesterday
        • 0 rides
        Past Week
        • 5 rides

        Lemhi Mountains Mountain Bike Routes

        Yellow Peak Loop Featured
        22 miles 3,371 ft 4 Loop
        This remote and scenic loop around Yellow Peak, for advanced riders only, follows Big Timber and s....

        Photos of Lemhi Mountains Mountain Bike

        13 |
        Jun 29, 2026 @ 4:24pm
        Jun 29, 2026
        35 |
        Aug 29, 2025 @ 7:23am
        Aug 29, 2025
        30 |
        Aug 29, 2025 @ 7:23am
        Aug 29, 2025
        31 |
        Aug 29, 2025 @ 7:23am
        Aug 29, 2025
        31 |
        Aug 27, 2025 @ 9:24am
        Aug 27, 2025
        405 |
        Nov 1, 2015 @ 7:25am
        Nov 1, 2015
        335 |
        Nov 1, 2015 @ 7:23am
        Nov 1, 2015
        315 |
        Nov 1, 2015 @ 7:22am
        Nov 1, 2015
        374 |
        Dec 30, 2014 @ 7:49am
        Dec 30, 2014
        358 |
        Dec 30, 2014 @ 7:41am
        Dec 30, 2014
        166 |
        Dec 8, 2014 @ 8:01pm
        Dec 8, 2014
        123 |
        Dec 8, 2014 @ 7:42pm
        Dec 8, 2014

        Videos of Lemhi Mountains Mountain Bike

        Big Timber - Cabin Creek Trail
        846 | Oct 3, 2014 , Leadore
        Big Timber Creek Trail
        1051 | Oct 3, 2014 , Leadore

        Recent Trail Reports

        statustraildateconditioninfouser
        Snowbank
        Jul 7, 2026 @ 6:53pm (America/Boise)
        2 days
        Dry We accessed the Snowbank Trail via the...Azdolan
        Timber Creek
        Jul 7, 2026 @ 6:53pm (America/Boise)
        2 days
        DryWe accessed the Snowbank Trail via the...Azdolan
        Park Fork-Lake Fork
        Aug 27, 2025 @ 7:17am
        Aug 27, 2025
        Variableoldermountain
        Middle Fork Little Timber Creek
        Aug 26, 2025 @ 6:42pm
        Aug 26, 2025
        WetGot a lot of rain today. Muddy and slick....oldermountain
        Devils Basin
        Aug 26, 2025 @ 6:37pm
        Aug 26, 2025
        VariableAll clear, but there is significant water...oldermountain
        Buck Lakes
        Aug 25, 2025 @ 8:34am
        Aug 25, 2025
        DryAbout a half dozen down trees across the...sidehiller1 TRAILFORKS
        North Fork McKim Creek
        Aug 11, 2025 @ 8:07am
        Aug 11, 2025
        Ideal Cleared from McKim creek trailhead to...MCHADBARNEY
        N. Fork Big Creek Trail
        Jul 5, 2025 @ 2:21pm
        Jul 5, 2025
        IdealTrail riding great. 2nd crossing is now...swanybikes16
        Kadletz-Hayden
        Oct 13, 2024 @ 11:39am
        Oct 13, 2024
        Dry A couple dozen larger trees down. 3 on...chuktA TRAILFORKS
        Patterson
        Sep 15, 2024 @ 11:54am
        Sep 15, 2024
        IdealTough climb, great views. This is a...bengavelda

        Activity Feed

        usernameactiontypetitledate
        Azdolanaddreportactivity #98679958 and 1 more
        Jul 7, 2026 @ 5:57pm
        2 days
        BenKCL7rNwishlistrouteactivity #98132574
        Jun 30, 2026 @ 8:28am
        Jun 30, 2026
        macgyver96addphotoactivity #98093474
        Jun 29, 2026 @ 4:24pm
        Jun 29, 2026
        macgyver96addpoiactivity #98093471
        Jun 29, 2026 @ 4:24pm
        Jun 29, 2026
        mbrosiouswishlisttrailactivity #97666774 and 1 more
        Jun 23, 2026 @ 6:32pm
        Jun 23, 2026

        Recent Comments

        usernametypetitlecommentdate
        oldermountaintrailDevils BasinAlso there's a waterfall
        Aug 26, 2025 @ 6:37pm
        Aug 26, 2025
        oldermountaintrailDevils BasinMore info: this trail is awesome. The first is...
        Aug 26, 2025 @ 6:36pm
        Aug 26, 2025
        oldermountaintrailPark Fork-Lake ForkGorgeous trail
        Aug 26, 2025 @ 6:35pm
        Aug 26, 2025
        oldermountaintrailPark Fork-Lake ForkMiserable as a climb, but awesome going down.
        Aug 26, 2025 @ 6:34pm
        Aug 26, 2025
        oldermountaintrailMiddle Fork Little Timber CreekGood climb for getting to that high elevation...
        Aug 24, 2025 @ 9:26pm
        Aug 24, 2025

        Nearby Areas

        namedistance
        CDT - Bannock Pass 3 6 1119.8 km
        Lost River Range 220 km
        Lemhi Pass National Historic Monument 128.4 km
        Twelvemile 2 15 16 230.2 km
        Barracks Lane - Mulkey Creek 18 9 135.5 km

        Local Badges


        Activity Type Stats

        activitytypetrailsdistancedescentdescent distancetotal verticalratingglobal rankstate rankphotosreportsroutesridelogs
        Mountain Bike60252 miles55,423 ft105 miles4,839 ft
        #712#2742602271147
        E-Bike32128 miles24,783 ft49 miles4,839 ft
        #1,078#6571933
        Gravel Bike1048 miles5,568 ft18 miles3,556 ft
        #3,424#1,57824
        Adaptive Bike739 miles5,456 ft17 miles3,848 ft
        #3,435#1,58211
        Winter Fat Bike1152 miles13,366 ft25 miles3,373 ft
        #3,424#1,57813
        Horse57226 miles48,451 ft91 miles4,839 ft
        #49#1731421
        Hike61254 miles55,456 ft105 miles4,839 ft
        #388#219230135
        Trail Running61254 miles55,456 ft105 miles4,839 ft
        23017
        Dirtbike/Moto32129 miles27,388 ft53 miles3,944 ft
        #162#7613113
        ATV/ORV/OHV624 miles1,995 ft4 miles2,841 ft
        #553#23195
        Snowmobile16 miles23 ft673 ft1,975 ft
        Snowshoe16 miles23 ft673 ft1,975 ft
        Backcountry Ski16 miles23 ft673 ft1,975 ft

        Frequently Asked Questions About Lemhi Mountains

        What are the highest rated mountain biking trails in Lemhi Mountains?
        The highest rated mountain biking trails in Lemhi Mountains are: View all mountain biking trails sorted by rating.
        What is the best time of the year to ride in Lemhi Mountains?
        Based on ride log data, the most popular months to ride in Lemhi Mountains are:
        • July (20 activities)
        • August (10 activities)
        • September (5 activities)
        Check the Lemhi Mountains reports page for current trail conditions, recent trail reports, and seasonal information from the local community.
        Where can I park to ride in Lemhi Mountains?
        There are 2 parking locations listed in Lemhi Mountains. The most popular parking spots are:
        What is the longest trail in Lemhi Mountains?
        The longest trail in Lemhi Mountains is Snowbank at 14.5 miles. View all trails sorted by distance.
        • By toddTF Pro Trailforks & contributors
        • Admins: simba, sidehiller1
        • #4964 - 6,354 views

        Downloading of trail gps tracks in kml & gpx formats is enabled for Lemhi Mountains.
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