12,439 Trails in United States

Trail Name Difficulty Length (mi) Rating City
Otter Springs Singletrack Intermediate difficulty 5 ***** Crandon
Otter Slide (Grand Targhee Bike Park) Intermediate difficulty 1.0 **** Alta
Otter Creek Beginner difficulty 3.0 **** Altoona
Otter Creek Intermediate difficulty 7.0 *** Louisville
Otis/atwood Conservation Area Loop (West Barnstable Conservation Area) Intermediate difficulty 2.0 ***** Hyannis
Otis Mountain difficulty 8 Elizabethtown
Otis Intermediate difficulty 30.0 ***** Bourne
Otero Canyon Intermediate difficulty 5.0 **** Albuquerque
Otay Valley Regional Park Easiest difficulty 8.0 **** San Diego
Oswegatchie difficulty 5.0 East Lyme
Oswald West State Park Beginner difficulty 8.0 ** Cannon Beach
Oso Creek Park Beginner difficulty 7.0 **** Corpus Christi
Oso Corredor (Faulty Trail) Advanced difficulty 3.0 **** Cedar Crest
Osha Canyon Trail #20 difficulty 7.0 Taos
Oscar's Loop (Coler Mountain Bike Preserve) difficulty 2.56 Bentonville
Oscar Scherer State Park Easiest difficulty 12.0 ** Osprey
Osborne Mountain Trail #250 difficulty 5.45 Ashford
Osberg's Ridgeline Trail Intermediate difficulty 15.0 ***** Sun Valley
Osage Hills State Park Intermediate difficulty 5.0 *** Bartlesville
Ortonville trail Beginner difficulty 3 *** Ortonville
Orton Trail (Emerald Mountain) difficulty 1.0 Steamboat Springs
Oro Grande Trail Beginner difficulty 4.0 *** Dillon
Oro Fino Gulch Road (South Hills Trail System) difficulty 6.0 Helena
Orlando Wetlands Park Beginner difficulty 18.0 **** Christmas
Orlando Mountain Bike Park Beginner difficulty 1.7 **** Orlando
Orion Oaks Beginner difficulty 10.0 **** Lake Orion
Original Loop (Moore’s Springs Trails) difficulty 2.2 Danbury
Oriental Express (Galbraith Mountain) difficulty 0.75 Bellingham
Oregon Zoo Downhill Beginner difficulty 3.0 *** Portland
Oregon Gulch / Trail #183 difficulty 6.0 Sun Valley
Ore Cart / Link (Park City Mountain Resort (PCMR)) Intermediate difficulty 0.0 Park City
Orchard Ridge Loop difficulty 3.0 Brownstown
Orchard / 5 Mile / Watchman Advanced difficulty 8.0 ***** Boise
ORC (Beebe Hill State Forest) Advanced difficulty 1.0 ***** Austerlitz
Orange Trail and Forbidden drive (Wissahickon Valley Park) difficulty 15.0 Philadelphia
Orange Loop Easiest difficulty 1.0 ** Waurika
Orange Loop (Hard Labor Creek State Park) difficulty 0.6 Rutledge
Orange Loop (White Oak Mtn Biology Trails) Advanced difficulty 1.0 ***** Collegedale
Orange Harvester (Rocky Top) difficulty 1.04 Yakima
Opossum Hollow Intermediate difficulty 6.0 **** Knob Noster
Open Quarry Rd. Easiest difficulty 4.0 **** Spring Hill
Opal Creek Beginner difficulty 4.0 *** Mehama
Op Schnabel Park Intermediate difficulty 20.0 **** San Antonio
Ontario Pathways Beginner difficulty 21.0 *** Canandaigua, Stanley
Ontario Bypass (Deer Valley Resort Bike Park) Intermediate difficulty 1.0 Park City
One Beer Loop Easiest difficulty 2.0 * Cleveland
One (HoliMont Bike Park) difficulty 0 Ellicottville
On the Rocks (Bobcat Ridge) Advanced difficulty 1.0 ***** Masonville
On The Edge (Copper Harbor Trails) Advanced difficulty 0.5 ***** Copper Harbor
Oly's difficulty 1.2 Cody

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.