12,439 Trails in United States

Trail Name Difficulty Length (mi) Rating City
Iron Mountain Trail Beginner difficulty 5 *** Lake Oswego
Iron Mountain Loop Intermediate difficulty 12.0 *** Cisco
Iron Mountain Intermediate difficulty 30 ***** Arkadelphia
Iron Mountain Advanced difficulty 8.0 **** Damascus
Iron Man difficulty 2.4 Park City
Iron Legs Trail Intermediate difficulty 6.0 **** Anniston
Iron Horse Trail Lake Easiest difficulty 5.0 * Du Bois
Iron Hills Trail System difficulty 0 Cedar City
Iron Hill Recreation Area Intermediate difficulty 8.0 **** Newark
Iron Gate Trail (Soaring Eagle Regional Park) difficulty 0.75 Sammamish
Iron Bear Trail #1351 difficulty 5.77 Cle Elum
Irish Hill Intermediate difficulty 6.0 *** Berlin
Irish Hill Advanced difficulty 5.0 **** San Luis Opispo
Irish Death (Galbraith Mountain) difficulty 0.57 Bellingham
Ira Loop difficulty 6.0 Ira
Ira B Melton Intermediate difficulty 3.0 *** Decatur
Ionia State Recreation Area Intermediate difficulty 8.0 *** Saranac
Invictus difficulty 0.81 Snoqualmie
Intrepid (Dead Horse Point State Park) difficulty 0.5 Moab
Into The Clouds difficulty 8.0 Jonesville
Intestine (Galbraith Mountain) difficulty 0.34 Bellingham
Intervale Bike Trail Beginner difficulty 4.0 *** Burlington
Interurban Tr Beginner difficulty 5.96 **** Bellingham
Interstate Power Preserve Intermediate difficulty 5.0 ***** Dubuque
Interplanet Janet (Hand Cut Hollow) difficulty 0.32 Bentonville
Intermediate Loop 2 (Hog Run/Harris Lake) difficulty 0.9 New Hill
Intermediate Loop 1 (Hog Run/Harris Lake) difficulty 0.8 New Hill
Interlake SRA difficulty 20.0 Lynnville
Interconnect Trail (Woolly Trails) difficulty 0.6 St. Croix Falls
Insurgent (The Canyons Area) difficulty 1.0 Park City
Instep (Klondike Bluffs) difficulty 0.7 Moab
Inspiration Point (Losee Canyon) difficulty 0.3 Panguitch
Inside Passage (Klondike Bluffs) Beginner difficulty 0.3 *** Moab
Inside Passage (Tiger Mountain) difficulty 1.6 Issaquah
Inner Loop B (Hog Run/Harris Lake) difficulty 0.6 New Hill
Inner Loop A (Hog Run/Harris Lake) difficulty 0.4 New Hill
Inner Loop (Seminole Trails) difficulty 0.8 Fitchburg
Inner Loop difficulty 6.0 Menlo Park
Inner Loop difficulty 1.0 Westbrook
Inner Limits (South Shore Lake Pueblo) Beginner difficulty 5.0 **** Pueblo
Inn Loop difficulty 13.0 Bend
Inman Canyon to Toponce Basin difficulty 20.0 Inkom
Ingles Field Gap #150 (Bent Creek) difficulty 1.3 Asheville
Ingles Field Connector (Bent Creek) difficulty 0.2 Asheville
Ingawanis Woodlands Intermediate difficulty 7.0 ***** Waverly
Infiniti BMX trail Intermediate difficulty 0.5 ***** Olmsted Falls
Indy Intermediate difficulty 12.0 **** North Pekin
Indigo Loop Intermediate difficulty 2.64 ***** De Soto
Indian Truck Trail Intermediate difficulty 8.0 *** Corona
Indian Trails Bike Park Beginner difficulty 5.0 **** Grand Rapids

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.