540 Trails in Uinta–Wasatch–Cache National Forest, Idaho

Trail Name Difficulty Length (mi) Rating City
Spooky Beginner difficulty 2.0 *** Victor
Spire Rock  difficulty 13.0 Whitehall
Spencer Mountain Advanced difficulty 5.0 **** Whitefish
Spare Rib (Discovery Hill Trails)  difficulty 2.0 Salmon
Southbound (Horseshoe Canyon Trail) Intermediate difficulty 5.0 *** Driggs
South Skookum Trail #138  difficulty 1.0 Newport
South Shore Trail System Advanced difficulty 18.0 ***** Great Falls
South Lost Creek Trail #86  difficulty 6.0 Bigfork
South Hills Trail System Intermediate difficulty 75.0 **** Helena
South Hill Bluff  difficulty 12 Spokane
South Fork Snake River Trail Intermediate difficulty 15.0 *** Swan Valley
South Fork Rim Trail  difficulty 6.0 Swan Valley
South Fork of Horseshoe Canyon (Horseshoe Canyon)  difficulty 5.0 Driggs
South Fork Hemler Creek Trail #20  difficulty 6.0 Bigfork
South Fork Fall Creek Trail  difficulty 7.0 Swan Valley
South Fork Bear Creek Trail  difficulty 8.0 Swan Valley
South Cottonwood Intermediate difficulty 12.0 ***** Bozeman
Soldier Mountain  difficulty 5 Fairfield
Snowbank Trail Advanced difficulty 25.0 ***** Howe
Smokey Range Nrt. Trail #270  difficulty 9.0 Columbia Falls
Slump Ridge (Discovery Hill Trails)  difficulty 2.0 Salmon
Slump Gulch Loop (Discovery Hill Trails)  difficulty 8.0 Salmon
Slate Mountain Trail Advanced difficulty 0.0 ***** Pocatello
Skyles Lake Parking Lot (Whitefish Trail)  difficulty 0.0 Whitefish
Ski Lift--kelly Canyon  difficulty 3.0 *** Ririe
Sixmile Sidehill Trail #27  difficulty 3.0 Swan Lake
Sixmile Lookout Trail #10  difficulty 5.0 Swan Lake
Silver Mountain Bike Park Advanced difficulty 25.0 *** Kellogg
Silver (Mt. Spokane)  difficulty 0.81 Spokane
Sidewinder Intermediate difficulty 3.0 **** Boise
Show Me the Horse (South Hills Trail System) Intermediate difficulty 1.0 **** Helena
Short Draw (Saltese Conservation Area)  difficulty 0.64 Spokane Valley
Shoofly Loop (Chief Joseph Pass Area Trails)  difficulty 24.0 Wisdom
Shingle Creek  difficulty 14.0 Boise
Sherman Creek Trail #203  difficulty 7.0 Lowell
Sheldon Mountain  difficulty 7.0 Libby
Sheep Mountain ORV Trails  difficulty 10.0 Headquarters
Sheep Mountain Advanced difficulty 25.0 ***** Missoula
Sheep Driveway  difficulty 0.0 Victor
Sheep Creek/little Elk Connection  difficulty 7.0 Palisades
Sheep Creek Trail Advanced difficulty 10.0 **** West Yellowstone
Sheep Bridge Trail Easiest difficulty 5.0 ** Alta
Sharks Belly (Horseshoe Canyon) Intermediate difficulty 7.0 **** Driggs
Shane's Loop Intermediate difficulty 7 **** Boise
Shady Way (Mt. Spokane)  difficulty 1.01 Spokane
Secesh River Trail #80  difficulty 14.0 **** McCall
Seaman's Gulch Easiest difficulty 2.0 **** Boise
Schweitzer Mountain Resort  difficulty 50 Sandpoint
Sawtell Peak Trail  difficulty 4.0 Island Park
Sapphire Crest / Rock Creek Divide #313 Advanced difficulty 21.0 ** Hamilton

Know of a new mountain bike trail not listed here? Please tell us about it using this form. Find mountain bike trails near you or for even more trail inspiration and how we ranked the mountain bike trails, see this list of the best mountain bike trails in the world.