888 Trails in Orange20County, California

Trail Name Difficulty Length (mi) Rating City
Arnold Rim Trail Intermediate 10.0 ***** Arnold
Armstrong Pass (Armstrong Connector) Intermediate 17.0 ***** South Lake Tahoe
Arcata Community Forest Intermediate 15.0 **** Arcata
Arastradero Preserve Beginner 8.0 *** Palo Alto
Aptos Fire Road (Forest Of Nisene Marks and Soquel Demonstration Forest) Easiest 12.0 **** Aptos
Anza-Cuyamaca North Side Singletrack (Cuyamaca Rancho State Park) Intermediate 19.0 *** Cuyamaca
Anthony Chabot Regional Park Beginner 19.0 *** Castro Valley
Annadel State Park Intermediate 35.0 **** Santa Rosa
Angora Ridge / Tahoe Mountain loop 17.0 South Lake Tahoe
Angel Island Easiest 18.0 ** Tiburon
Anderson Truck Trail Advanced 7.0 ***** Alpine
Anaheim Hills Trail Beginner 9.0 ***** Anaheim
American River Trail Beginner 32.0 *** Sacramento
American River Confluence Trails Intermediate 7.0 **** Auburn
Alviso Marina County Park Beginner 0.0 *** Alviso
Alum Rock County Park Beginner 5 ***
Alpine Pedal Path Beginner 2.0 ***** Big Bear City
Almaden Quicksilver County Park Advanced 10.0 *** San Jose
Almaden Lake Trail 8.0 San Jose
Aliso and Wood Canyons Wilderness Park Intermediate 20.0 **** Laguna Beach
Alamitos Creek Trail (Hidden Springs Trail) Intermediate 1.2 **** San Jose
Acton Trail 20.0 *** Acton
Acorn Trail Intermediate 2.0 **** Wrightwood
Acorn Trail 2.0 Wrightwood
Acorn Creek to Darrington Connector 1.5 Pilot Hill
Abbotts Lagoon 2.0 Inverness
A-line Beginner 38.0 **** Stirling City
7th Street (Turnbull Canyon) Intermediate 5.0 ***** Hacienda Heights
5150 Trail Advanced 1.0 **** Auburn
5 Oaks Trail (Aliso and Wood Canyons Wilderness Park) Advanced 1.0 **** Laguna Beach
30 Miles Of Auburn Intermediate 30.0 ***** Auburn
2n51y (Big Bear Mountain Resort) Beginner 3.0 *** Big Bear Lake
2n10 (Big Bear Mountain Resort) Beginner 10.0 *** Big Bear Lake
2n08 (Big Bear Mountain Resort) Beginner 2.0 ** Big Bear Lake
1st / 2nd / 3rd Divide (Downieville Downhill) Advanced 17.0 ***** Downieville
007 Intermediate 7.0 **** Bass Lake
"M" Trail (Cerro San Luis) 0.93 San Luis Obispo
"B" (Upper Bidwell Park) Expert 1.0 ***** Chico