Best Mountain Biking Trails in Idaho | Trailmonger

About mountain biking in Idaho

Idaho has 3,326 named trails tagged for mountain biking on the map, covering 6,840 miles, an average of 2.1 miles each. The longest is TransAmerica Trail (Idaho) in Idaho County, at 187 miles. 270 run 5 miles or longer. 32 of the state's counties have at least one; Idaho County has the most, with 1,527 trails.

Top 100 mountain biking trails, longest first

TransAmerica Trail (Idaho)MTBIdaho County187 mi Boise River GreenbeltHikeMTBAda County87.7 mi Trail of the Coeur D'AlenesHikeMTBKootenai County67.3 mi 10 (Idaho)MTBBonner County67.2 mi bicycleMTBBonner County60.9 mi Wood River TrailsMTBBlaine County48.5 mi International Selkirk LoopMTBBonner County47.4 mi International Selkirk Loop (USA)MTBBonner County47.4 mi North Idaho Centennial TrailMTBKootenai County41.8 mi Weiser River TrailMTBAdams County37.6 mi Harriman TrailHikeMTBBlaine County36.6 mi The GrinderHikeMTBBlaine County32.6 mi Latah TrailMTBLatah County32.1 mi Milner TrailHikeMTBIdaho County23.3 mi Over EasyHikeMTBLatah County20.1 mi Ashton-Tetonia Rail TrailMTBFremont County19.2 mi Indian RidgeHikeMTBValley County18.7 mi Bull CreekHikeMTBValley County18.3 mi Idaho Centennial TrailHikeMTBIdaho County17.0 mi Ashton-Tetonia Rail TrailMTBTeton County16.6 mi Warm Springs PointMTBBoise County16.5 mi Danskin #317MTBElmore County15.3 mi Stateline National Recreation TrailHikeMTBShoshone County15.0 mi alternate paved bike routeMTBFremont County14.7 mi Big Canyon RoadHikeMTBIdaho County14.6 mi Fish Creek TrailHikeMTBIdaho County14.4 mi Blue Ridge RoadHikeMTBIdaho County14.2 mi Driveway TrailHikeMTBIdaho County14.2 mi Tenmile TrailHikeMTBIdaho County14.0 mi Eagle NestHikeMTBValley County13.9 mi Route of the HiawathaMTBShoshone County13.7 mi Osberg Ridgeline Trail #147HikeMTBBlaine County13.6 mi Big CottonwoodHikeMTBCassia County13.6 mi Stateline TrailHikeMTBClearwater County13.6 mi Porters Mountain TrailHikeMTBIdaho County13.5 mi Beaver Creek RoadHikeMTBBonner County12.9 mi Cougar Creek RoadHikeMTBClearwater County12.8 mi Big CedarMTBCassia County12.7 mi Spring Creek TrailHikeMTBBlaine County12.7 mi Bannock Creek RoadHikeMTBBoise County12.6 mi Buckhorn CreekHikeMTBValley County12.6 mi Glover TrailHikeMTBIdaho County12.5 mi CedronMTBTeton County12.4 mi Danskin #500MTBElmore County12.4 mi Fitsum CreekHikeMTBValley County12.1 mi Crooked RiverHikeMTBBoise County12.0 mi Sixty Six Creek RoadHikeMTBIdaho County11.8 mi Snoose Creek TrailHikeMTBIdaho County11.5 mi East Fork ValleyHikeMTBCuster County11.5 mi Little Slate TrailHikeMTBIdaho County11.4 mi Radcliff Ridge RoadHikeMTBIdaho County11.3 mi GrowlerHikeMTBAdams County11.2 mi Canyon Creek RoadHikeMTBIdaho County11.1 mi Payette RimHikeMTBValley County11.1 mi Champion CreekHikeMTBCuster County11.1 mi Bates-HorseshoeMTBTeton County11.1 mi Blue Mountain RoadHikeMTBIdaho County11.0 mi Hay-Knapp CreekHikeMTBCuster County10.5 mi Five Mile PathwayMTBAda County10.5 mi Prairie TrailMTBKootenai County10.5 mi #98 Around the MountainHikeMTBBoise County10.3 mi Chipmunk Rapids TrailHikeMTBBonner County10.2 mi Route of the Hiawatha TrailHikeMTBShoshone County10.2 mi Ranger TrailHikeMTBCassia County10.0 mi Lytle Cow Camp RoadHikeMTBIdaho County9.9 mi Beacon Light BikewayMTBAda County9.8 mi Headwaters LoopMTBLatah County9.7 mi Devil's CreekHikeMTBElmore County9.7 mi Trail DHikeMTBKootenai County9.7 mi Driveway Extension TrailHikeMTBIdaho County9.6 mi Redfish-Stanley TrailMTBCuster County9.5 mi Duck Lake TrailHikeMTBValley County9.5 mi Nellie Mountain RoadHikeMTBIdaho County9.5 mi Tyndall CreekHikeMTBValley County9.4 mi South Fork White Bird Creek TrailHikeMTBIdaho County9.4 mi Upper Priest Lake TrailHikeMTBBonner County9.3 mi State Line Motor TrailHikeMTBShoshone County9.2 mi Brush CreekHikeMTBValley County9.2 mi Adams Rib Trail #142HikeMTBBlaine County9.2 mi North Boise TrailHikeMTBIdaho County9.1 mi McMillan-Ustick BikewayMTBAda County9.1 mi Flint Creek RoadHikeMTBIdaho County9.0 mi Big Eddy TrailHikeMTBClearwater County9.0 mi Front Trail EastHikeMTBCamas County8.9 mi Canyon Rim TrailMTBTwin Falls County8.8 mi Chinden-McMillan BikewayMTBAda County8.8 mi Music Line RoadHikeMTBIdaho County8.8 mi Moose Butte TrailHikeMTBIdaho County8.8 mi McCannMTBValley County8.7 mi Harrington ForkHikeMTBCassia County8.7 mi OverlandHikeMTBBonner County8.6 mi Danskin #300MTBElmore County8.4 mi Greenhorn Trail #156HikeMTBBlaine County8.4 mi East Boyd TrailHikeMTBIdaho County8.4 mi Warm SpringsHikeMTBBlaine County8.3 mi Indian Creek RoadHikeMTBIdaho County8.3 mi Victor-Driggs Rail TrailMTBTeton County8.3 mi Lost Creek-State Line TrailHikeMTBShoshone County8.2 mi Sunday CreekHikeMTBCuster County8.2 mi Telephone CanyonMTBCassia County8.2 mi

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Trail geometry from OpenStreetMap contributors, licensed ODbL. Elevation from the USGS 3D Elevation Program. Compiled and published by Trailmonger · trail data last rebuilt August 28, 2026.