| 4 Palms | | Chula Vista Canyon Trails | Chula Vista | CA | mtb |
| 5 Bridges | | Chula Vista Canyon Trails | Chula Vista | CA | mtb |
| 765 | | San Elijo Hills | San Marcos | CA | mtb |
| 911A (Peacemaker) Trail | | Corral Canyon OHV Area | Campo | CA | mtb |
| Acadia Boulevard Connector | | Tri-Canyons | San Diego | CA | mtb |
| Access Road | | Rancho La Costa Preserve | Carlsbad | CA | mtb |
| Access Road | | Rancho La Costa Preserve | Carlsbad | CA | mtb |
| Access Trail to Rock House Trailhead | | Sweetwater Reservoir | Chula Vista | CA | |
| Acworth | | Tri-Canyons | San Diego | CA | |
| ADA Bridge Access via Golf Course | | Encinitas Ranch Pathways and Trails | Encinitas | CA | mtb |
| Adobe Bluffs - Maler | | Black Mountain | San Diego | CA | mtb |
| Agua Dulce Spur Se22 | | Laguna Mountain Recreation Area | Mount Laguna | CA | mtb |
| Ahwee Trail | | Black Mountain | San Diego | CA | mtb |
| All's Well If It Ends Well | | Balboa Park | San Diego | CA | mtb |
| Amson Farm Trail | | Tijuana River Valley Regional Park | San Ysidro | CA | |
| Anderson Ridge Climb | | Los Peñasquitos Canyon | San Diego | CA | mtb |
| Anne's Descent | | San Elijo Hills | San Marcos | CA | mtb |
| Aquaduct Cutoff | | Mission Trails Regional Park | San Diego | CA | |
| Aqueduct Fire Road Connecter | | Black Mountain | San Diego | CA | |
| Aqueduct Service Road - Black Mountain Ranch section | | Black Mountain | San Diego | CA | mtb |
| Area F2, V2 | | San Elijo Hills | San Marcos | CA | mtb |
| Arroyo Seco Trail | | Cuyamaca Rancho State Park | descanso | CA | |
| Artesian Trail | | Black Mountain | San Diego | CA | mtb |
| Avocado Trail | | Poway | Poway | CA | mtb |
| Avocado Trail Link | | Mount Woodson | | CA | mtb |
| Azalea Springs Trail | | Cuyamaca Rancho State Park | descanso | CA | |
| Baby head | | Wrights Field | Alpine | CA | mtb |
| Back to school (Descent) | | Chula Vista Canyon Trails | Chula Vista | CA | mtb |
| backside connector | | Wrights Field | Alpine | CA | mtb |
| Banner Toll Road | | Cuyamaca Rancho State Park | Julian | CA | mtb |
| Battle Trail | | Tri-Canyons | San Diego | CA | mtb |
| Bayshore Bikeway | | San Diego | San Diego | CA | mtb |
| BD | | Los Peñasquitos Canyon | San Diego | CA | mtb |
| Beach - Del Mar to Carmel Valley Rd | | Del Mar | Del Mar | CA | |
| Beach Street Trail | | Encinitas Ranch Pathways and Trails | Encinitas | CA | mtb |
| Beach Trail | | Tijuana River Valley Regional Park | San Ysidro | CA | |
| Beam Me Up | | Los Peñasquitos Canyon | San Diego | CA | mtb |
| Beck's flow trail | | San Elijo Hills | San Marcos | CA | mtb |
| Beeler Creek | | Sycamore Canyon/Goodan Ranch | San Diego | CA | mtb |
| Beeler Creek Connect | | Sycamore Canyon/Goodan Ranch | San Diego | CA | mtb |
| Beeler to Martha Grove | | Sycamore Canyon/Goodan Ranch | San Diego | CA | mtb |
| Bell Bluff | | San Diego County | | CA | mtb |
| Bernardo Bay Trail | | Lake Hodges | Escondido | CA | mtb |
| Bernardo Flag trail | | San Diego | San Diego | CA | mtb |
| Bernardo Mountain Trail | | Lake Hodges | Escondido | CA | mtb |
| Beyer North (OVRP) | | Otay Valley Regional Park | Chula Vista | CA | mtb |
| Beyer South (OVRP) | | Otay Valley Regional Park | Chula Vista | CA | mtb |
| Big Black Mountain Trail 11S04 | | Ramona | Ramona | CA | mtb |
| Big Dipper | | Los Peñasquitos Canyon | San Diego | CA | mtb |
| Big Laguna (PCT Connector) | | Laguna Mountain Recreation Area | Mount Laguna | CA | hike |
| Big Laguna Trail #5e06 | | Laguna Mountain Recreation Area | Mount Laguna | CA | mtb |
| Big Momma | | Wrights Field | Alpine | CA | mtb |
| Big Momma DH | | Wrights Field | Alpine | CA | mtb |
| Big Rock Trail | | Cowles Mountain | San Diego | CA | |
| Bike Check | | City Heights | San Diego | CA | mtb |
| Billie Bypass | | Sweetwater Reservoir | Chula Vista | CA | mtb |
| Biltmore Trail | | San Diego County | | CA | mtb |
| Bird and Butterfly | | Tijuana River Valley Regional Park | San Ysidro | CA | |
| Black Mountain Face | | Los Peñasquitos Canyon | San Diego | CA | mtb |
| Black Mountain Road Path | | Black Mountain | San Diego | CA | mtb |
| Black Mountain SDG&E Service Road | | Black Mountain | San Diego | CA | |
| Black Mountain Secondary Summit Trail | | Black Mountain | San Diego | CA | mtb |
| Black Mountian Summit Road | | Black Mountain | San Diego | CA | mtb |
| Black Oak Trail | | Cuyamaca Rancho State Park | descanso | CA | mtb |
| Black Top Swamp | | Los Peñasquitos Canyon | San Diego | CA | |
| Black Top Swamp Connector | | Los Peñasquitos Canyon | San Diego | CA | mtb |
| Black Widow | | Black Mountain | San Diego | CA | mtb |
| Blazing Star | | Los Peñasquitos Canyon | San Diego | CA | mtb |
| Blind Man's Descent | | Balboa Park | San Diego | CA | |
| Blue Ribbon Trail | | Descanso | descanso | CA | |
| BM to PV | | Los Peñasquitos Canyon | San Diego | CA | mtb |
| BMR Parking Lot Connector | | Black Mountain | San Diego | CA | mtb |
| Bobcat Trail | | Daley Ranch | Escondido | CA | mtb |
| Bobcat Trail | | Corral Canyon OHV Area | Campo | CA | mtb |
| Boden Orosco Connector | | Ramona | Ramona | CA | mtb |
| Bonita Valley Trail North | | Sweetwater Reservoir | Chula Vista | CA | |
| Border Field | | Tijuana River Valley Regional Park | San Ysidro | CA | |
| Border Field Loop | | Tijuana River Valley Regional Park | San Ysidro | CA | |
| Border West | | Tijuana River Valley Regional Park | San Ysidro | CA | |
| Boulder Loop Trail | | Daley Ranch | Escondido | CA | mtb |
| Bowtie Rim | | Los Peñasquitos Canyon | San Diego | CA | mtb |
| Boyscout Trail | | Los Peñasquitos Canyon | San Diego | CA | mtb |
| Brake Time | | Ted Williams | Poway | CA | mtb |
| Bridle Trail | | Balboa Park | San Diego | CA | mtb |
| Bridoon Access Road | | Rancho La Costa Preserve | Carlsbad | CA | |
| Bridoon Tank - South Access | | Rancho La Costa Preserve | Carlsbad | CA | |
| Bridoon Tower Road | | Rancho La Costa Preserve | Carlsbad | CA | |
| Bronco Peak Connector | | Corral Canyon OHV Area | Campo | CA | mtb |
| Bronco Peak Trail | | Corral Canyon OHV Area | Campo | CA | mtb |
| Brookprinter Access | | Poway | Poway | CA | mtb |
| Brookprinter Loop | | Poway | Poway | CA | mtb |
| Buena Court Access | | Chula Vista Canyon Trails | Chula Vista | CA | |
| Bumster | | Sweetwater Reservoir | Chula Vista | CA | mtb |
| Bunny Trail | | Balboa Park | San Diego | CA | mtb |
| Burnt Mountain | | Daley Ranch | Escondido | CA | mtb |
| Burnt Pine Trail | | Descanso | descanso | CA | |
| California Hiking & Riding Trail | | Cuyamaca Rancho State Park | descanso | CA | mtb |
| California Riding & Hiking Trail - Japatul | | Alpine | Alpine | CA | mtb |
| California Riding & Hiking Trail - Loveland | | San Diego County | | CA | mtb |
| California Riding & Hiking Trail - Sloan Canyon | | San Diego County | | CA | mtb |
| California Riding & Hiking Trail - Spanish Bit Dr | | Alpine | Alpine | CA | mtb |
| California Riding & Hiking Trail - Sweetwater | | San Diego County | | CA | mtb |
| California Riding & Hiking Trail - Viejas Creek | | San Diego County | Alpine | CA | |
| Calle de Vida | | Mission Trails Regional Park | San Diego | CA | mtb |
| Camino del Sur to Adobe Bluffs | | Black Mountain | San Diego | CA | mtb |
| Camino Ruiz | | Los Peñasquitos Canyon | San Diego | CA | mtb |
| Camino twist | | Del Mar | Del Mar | CA | mtb |
| Cantebria Garden Trail | | Encinitas Ranch Pathways and Trails | Encinitas | CA | |
| Cantebria Garden Trail | | Encinitas Ranch Pathways and Trails | Encinitas | CA | |
| Canyon Connector | | Balboa Park | San Diego | CA | mtb |
| Canyon Trail | | San Elijo Hills | San Marcos | CA | mtb |
| Cara Knott Bike Path | | Ted Williams | Poway | CA | mtb |
| Cardiac Hill | | Sycamore Canyon/Goodan Ranch | San Diego | CA | mtb |
| Cardiff Rail Trail | | Encinitas | Encinitas | CA | |
| Carmel Bike Path | | Del Mar | Del Mar | CA | mtb |
| Carmel Country Tunnel | | Los Peñasquitos Canyon | San Diego | CA | mtb |
| Carmel Knolls Access | | Del Mar | Del Mar | CA | mtb |
| Carmel Mountain Psychopath | | Los Peñasquitos Canyon | San Diego | CA | mtb |
| Carmel Mountain Road Path | | Los Peñasquitos Canyon | San Diego | CA | mtb |
| Carson Trail | | Los Peñasquitos Canyon | San Diego | CA | hike |
| Carson's Crossing | | Los Peñasquitos Canyon | San Diego | CA | mtb |
| Carson's Viewpoint | | Los Peñasquitos Canyon | San Diego | CA | mtb |
| Carvacre access trail | | San Diego County | | CA | mtb |
| Carvacre Truck Trail | | San Diego County | | CA | mtb |
| Centennial Trail | | Otay Reservoir | Chula Vista | CA | mtb |
| Centennial Trail - Lower Otay | | Otay Reservoir | Chula Vista | CA | mtb |
| Cerro de las Posas Ridgeline Trail | | San Elijo Hills | San Marcos | CA | mtb |
| Chaparral Trail | | Elfin Forest Recreational Reserve | Escondido | CA | mtb |
| Chariot Canyon | | Cuyamaca Rancho State Park | Borrego Springs | CA | mtb |
| Chariot Canyon (Mason to the 78) | | Anza-Borrego Desert State Park | Borrego Springs | CA | mtb |
| Cherry Hill | | Los Peñasquitos Canyon | San Diego | CA | mtb |
| Chicarita Creek Path | | Ted Williams | Poway | CA | mtb |
| Chico Ravine Trail | | Laguna Mountain Recreation Area | Mount Laguna | CA | mtb |
| Chollas Creek; 47th-Euclid | | City Heights | San Diego | CA | |
| Chollas Creek; Euclid-54th | | City Heights | San Diego | CA | |
| Chollas Creek; Euclid-54th South | | City Heights | San Diego | CA | |
| Chollas Creek; Parkway | | City Heights | San Diego | CA | |
| Chollas Creek; Sunshire-47th | | City Heights | San Diego | CA | |
| CHOS Service Road | | Los Peñasquitos Canyon | San Diego | CA | mtb |
| Chula Vista Golf | | Sweetwater Reservoir | Chula Vista | CA | |
| Chunky Monkey | | Los Peñasquitos Canyon | San Diego | CA | mtb |
| Cielo Trail | | Elfin Forest Recreational Reserve | Escondido | CA | mtb |
| Cliff Jumper | | Encinitas | Encinitas | CA | mtb |
| Coast to Crest - Del Mar Fairgrounds - Horse Park | | Del Mar | Del Mar | CA | mtb |
| Coast to Crest - Morgan's Run | | Del Mar | Del Mar | CA | mtb |
| Coast to Crest - Polo Fields | | Del Mar | Del Mar | CA | mtb |
| Coast to Crest Trail | | Santa Ysabel Open Space Preserve | Julian | CA | mtb |
| Coast to Crest Trail: Santa Ysabel Creek | | Ramona | Ramona | CA | mtb |
| Cobb Trail | | Rose Canyon | San Diego | CA | mtb |
| Cobbles | | Los Peñasquitos Canyon | San Diego | CA | mtb |
| Cobblestone Crossing | | Balboa Park | San Diego | CA | mtb |
| Cold Spring Trail | | Cuyamaca Rancho State Park | descanso | CA | mtb |
| Cold Stream (North) | | Cuyamaca Rancho State Park | descanso | CA | mtb |
| Cold Stream (South) | | Cuyamaca Rancho State Park | descanso | CA | hike |
| Coldstream Trail | | Cuyamaca Rancho State Park | descanso | CA | hike |
| Connection | | Lake Calavera Preserve | Carlsbad | CA | mtb |
| Connector | | Los Peñasquitos Canyon | San Diego | CA | hike |
| Copper Creek (SEH) | | San Elijo Hills | San Marcos | CA | mtb |
| Copper Creek Connector | | Rancho La Costa Preserve | Carlsbad | CA | mtb |
| Copper Creek Landfill | | Rancho La Costa Preserve | Carlsbad | CA | |
| Copper Creek Raceway Connector | | Rancho La Costa Preserve | Carlsbad | CA | mtb |
| Copper Creek Raceway East | | Rancho La Costa Preserve | Carlsbad | CA | mtb |
| Copper Creek Raceway West | | Rancho La Costa Preserve | Carlsbad | CA | mtb |
| Copper Creek to Water Tower Connector | | Rancho La Costa Preserve | Carlsbad | CA | mtb |
| Corral Canyon Campground | | Corral Canyon OHV Area | Campo | CA | mtb |
| Corral Canyon Trail | | Corral Canyon OHV Area | Campo | CA | mtb |
| Corte La Playa Catalina | | Mission Trails Regional Park | San Diego | CA | mtb |
| Corte Madera Mountain Trail | | Campo | Campo | CA | hike |
| Corte Madera Road | | Corral Canyon OHV Area | Campo | CA | mtb |
| Cougar Ridge | | Daley Ranch | Escondido | CA | mtb |
| Cowles Peak Fire Road | | Cowles Mountain | San Diego | CA | |
| Coyote Link | | Tijuana River Valley Regional Park | San Ysidro | CA | |
| Coyote Link East | | Tijuana River Valley Regional Park | San Ysidro | CA | |
| Coyote Maze | | Sycamore Canyon/Goodan Ranch | San Diego | CA | mtb |
| Crazy Horse | | Los Peñasquitos Canyon | San Diego | CA | mtb |
| Creek Crossing | | Daley Ranch | Escondido | CA | mtb |
| Crest Alt | | Daley Ranch | Escondido | CA | mtb |
| Crest Trail | | Daley Ranch | Escondido | CA | mtb |
| Crisalida Pole Line | | Black Mountain | San Diego | CA | mtb |
| Cudweed | | Lake Calavera Preserve | Carlsbad | CA | mtb |
| Cypress Connector | | Balboa Park | San Diego | CA | mtb |
| Dairy Mart Pond | | Tijuana River Valley Regional Park | San Ysidro | CA | |
| Daley Ranch Truck Trail | | Hollenbeck Canyon | Dulzura | CA | mtb |
| Daley Ranch Truck Trail Access | | Hollenbeck Canyon | Dulzura | CA | mtb |
| Dam Straight | | Black Mountain | San Diego | CA | mtb |
| Danger is My Buisness | | Black Mountain | San Diego | CA | mtb |
| Danny Devito | | Balboa Park | San Diego | CA | mtb |
| David Kreitzer Lake Hodges Bicycle Pedestrian Bridge | | Lake Hodges | Escondido | CA | mtb |
| Dead Cow connector | | Sweetwater Reservoir | Chula Vista | CA | mtb |
| Dead Cow Uphill | | Sweetwater Reservoir | Chula Vista | CA | mtb |
| Deer Creek Trail | | Laguna Mountain Recreation Area | Mount Laguna | CA | |
| Deer Park Road | | Laguna Mountain Recreation Area | Mount Laguna | CA | mtb |
| Deerfield BMX Loop Trail | | Mission Trails Regional Park | San Diego | CA | mtb |
| Deerfield Cutoff | | Mission Trails Regional Park | San Diego | CA | mtb |
| Deerfield Mid Cut | | Mission Trails Regional Park | San Diego | CA | |
| Del Dios Gorge / Santa Fe Valley Trail | | Lake Hodges | Escondido | CA | mtb |
| Del Mar Flow Trail | | Los Peñasquitos Canyon | San Diego | CA | mtb |
| Del Mar Mesa Road Bypass | | Los Peñasquitos Canyon | San Diego | CA | mtb |
| Del Mar Mesa Road Horse Pathway | | Los Peñasquitos Canyon | San Diego | CA | mtb |
| Del Mar Riverpath | | Del Mar | Del Mar | CA | mtb |