12,494 Trails in United States

Trail Name Difficulty Length (mi) Rating City
J-Line (Northwest Park) difficulty 0.5 Eau Claire
J-Boy (Red Fleet System) Advanced difficulty 4.0 ***** Vernal
Iwen park Intermediate difficulty 2.0 *** Fargo
Iverson Railroad Trail (Tiger Mountain) difficulty 1.91 Issaquah
Itusi @ Lake Norman State Park Intermediate difficulty 30.0 **** Troutman
Itsabitch (Tolt MacDonald) difficulty 0.8 Carnation
Ithaca Jailhouse Trail Beginner difficulty 4.0 *** Ithaca
Itchy And Scratchy Beginner difficulty 11.0 **** Green River
Italian Canyon Loop (Boggy Draw Loop) Intermediate difficulty 10.0 ***** Dolores
Issaqueena Lake Intermediate difficulty 40.0 **** Clemson
Issaquah-Preston Trail (Grand Ridge Park) difficulty 4.41 Issaquah
Ispheming SBR trails Advanced difficulty 20.0 **** Ishpeming
Isle Du Bois Intermediate difficulty 11.0 **** Pilot Point
Island Meadow Trail (Mill Canyon OHV Trails) difficulty 0.3 Alpine
Island Lake Beginner difficulty 13.0 **** Brighton
Island Creek Trail Beginner difficulty 5.0 *** Pollocksville
Island Center Forest Intermediate difficulty 9.0 **** Seattle
Isabella Landing Trail difficulty 7.0 Orofino
Isaac Heath Trail #40 Intermediate difficulty 1.0 **** Brevard
Isaac Heath Trail (DuPont State Recreational Forest) Intermediate difficulty 0.7 ***** Brevard
Irwin Trail / #833 Intermediate difficulty 2.0 **** Crested Butte
Irwin Lake Road / #826 Beginner difficulty 3.0 ** Crested Butte
Irvine Ranch Open Space difficulty 15.0 Irvine
Irvine Lake difficulty 4.0 Silverado
Iroquois National wildlife refuge Beginner difficulty 13.0 ** Basom
Ironman (The Canyons Area) Intermediate difficulty 3.0 Park City
Iron Peak Trail #1399 difficulty 3.34 Cle Elum
Iron Mountain: Yellow Loop (Iron Mountain) Intermediate difficulty 4.0 **** Arkadelphia
Iron Mountain Trail Expert difficulty 6.0 ***** Poway
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

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