| 1.0 | | Lefthand OHV | | 1,043 ft | -210 ft | |
| 47 Degrees | | Lefthand OHV | | 1,939 ft | -389 ft | |
| 9mm | | Lefthand OHV | | 1,227 ft | -312 ft | |
| Alt Line | | Lefthand OHV | | 56 ft | | |
| Backtrack | | Valmont Bike Park | | 433 ft | | 3 ft |
| Backtrack | | Valmont Bike Park | | 791 ft | | 8 ft |
| Backtrack | | Valmont Bike Park | | 207 ft | -2 ft | |
| Baughman's Gulley #842 | | Lefthand OHV | | 4,078 ft | -678 ft | 3 ft |
| Baughman's Saddle #840 | | Lefthand OHV | | 1,388 ft | -10 ft | 129 ft |
| Beauty and the Beast #837 | | Lefthand OHV | | 3,025 ft | | 736 ft |
| Benjamin Loop | | Betasso Preserve | | 2 miles | -487 ft | 497 ft |
| Benny's | | Lefthand OHV | | 676 ft | -152 ft | |
| Betasso Link | | Betasso Preserve | | 1 mile | -25 ft | 625 ft |
| Blue Jay Mine Access | | Walker Mountain | | 833 ft | -32 ft | 3 ft |
| Bon Scott | | Lefthand OHV | | 5,157 ft | -750 ft | 26 ft |
| Bon Scott Alt Line | | Lefthand OHV | | 144 ft | -20 ft | |
| Bonus | | Lefthand OHV | | 1,201 ft | -176 ft | 10 ft |
| Boulder Canyon Trail | | Boulder | | 2 miles | -15 ft | 335 ft |
| Boulder Reservoir Trail | | Boulder Valley Ranch / Boulder Reservoir | | 4 miles | -42 ft | 34 ft |
| Bring Da Ruckus | | Lefthand OHV | | 955 ft | -283 ft | |
| Brown Town | | Lefthand OHV | | 1,217 ft | -385 ft | |
| Buzz Cut | | Lefthand OHV | | 1,119 ft | -168 ft | |
| Canyon Loop | | Betasso Preserve | | 3 miles | -569 ft | 578 ft |
| Canyon Rim #845 | | Lefthand OHV | | 5,112 ft | -160 ft | 160 ft |
| Castle Cutoff 843.1A | | Lefthand OHV | | 1,545 ft | -336 ft | |
| Castle Cutoff 843.1A | | Lefthand OHV | | 751 ft | | 129 ft |
| Castle Cutoff (RZA) #843 | | Lefthand OHV | | 2,283 ft | -534 ft | |
| Castle Cutoff (Wrong Turn) #843 | | Lefthand OHV | | 1,152 ft | | 208 ft |
| Castle Gulch Spur (Start the Party) 287.1B | | Lefthand OHV | | 3,061 ft | -184 ft | 24 ft |
| CC Drop | | Lefthand OHV | | 95 ft | -4 ft | |
| Chancellor's Loop | | Boulder | | 4,295 ft | -27 ft | 29 ft |
| Chapman Drive | | Boulder Open Space | | 3 miles | -23 ft | 984 ft |
| Cherryvale | | Boulder | | 3,743 ft | -35 ft | |
| Cherryvale | | Boulder | | 1,444 ft | | 5 ft |
| Coal Seam | | Marshall Mesa/Doudy Draw/Flatirons Vista | | 3,717 ft | | 174 ft |
| Coalton | | Marshall Mesa/Doudy Draw/Flatirons Vista | | 3 miles | | 385 ft |
| Cobalt | | Boulder Valley Ranch / Boulder Reservoir | | 1 mile | | 210 ft |
| Community College | | Lefthand OHV | | 1,010 ft | -159 ft | |
| Community College Alt Line | | Lefthand OHV | | 341 ft | -38 ft | |
| Community College Bottom Jump Line | | Lefthand OHV | | 331 ft | -50 ft | |
| Community Ditch - East | | Marshall Mesa/Doudy Draw/Flatirons Vista | | 2 miles | -6 ft | 170 ft |
| Community Ditch - West | | Marshall Mesa/Doudy Draw/Flatirons Vista | | 2 miles | -25 ft | 36 ft |
| Community Park Trail | | Boulder | | 3,186 ft | -51 ft | 64 ft |
| Community Park Trail | | Boulder Valley Ranch / Boulder Reservoir | | 2,195 ft | -39 ft | 12 ft |
| Community Park Trail | | Boulder Valley Ranch / Boulder Reservoir | | 827 ft | | 33 ft |
| Community Park Trail | | Boulder | | 968 ft | | 23 ft |
| Community Park Trail | | Boulder | | 2,146 ft | -86 ft | |
| Community Park Trail | | Boulder | | 653 ft | -9 ft | |
| Community Park Trail | | Boulder | | 564 ft | -8 ft | |
| Connector | | Valmont Bike Park | | 266 ft | | |
| Corkscrew | | Valmont Bike Park | | 853 ft | -29 ft | |
| Cottonwood Trail | | Boulder | | 1 mile | -21 ft | 3 ft |
| Cowdrey Draw | | Marshall Mesa/Doudy Draw/Flatirons Vista | | 3,990 ft | -58 ft | 12 ft |
| Crook's Nook | | Walker Mountain | | 2 miles | -718 ft | 74 ft |
| CU South Hill | | CU South Campus | | 2,001 ft | -22 ft | 54 ft |
| CU South Lower Trail | | CU South Campus | | 3,924 ft | -28 ft | |
| CU South Main Loop | | CU South Campus | | 2 miles | -48 ft | 40 ft |
| CU South North Pond Loop | | CU South Campus | | 2,976 ft | -3 ft | 20 ft |
| CU South Singletrack 1 | | CU South Campus | | 3,091 ft | -5 ft | 24 ft |
| CU South Singletrack 2 | | CU South Campus | | 1,089 ft | -7 ft | 6 ft |
| CU South Singletrack 3 | | CU South Campus | | 787 ft | -49 ft | 5 ft |
| CU South to South Boulder Creek | | CU South Campus | | 1,407 ft | | 6 ft |
| CU South West loop | | CU South Campus | | 2,215 ft | -43 ft | |
| CU South West Loop | | CU South Campus | | 3,950 ft | -5 ft | 42 ft |
| CU South Westside | | CU South Campus | | 2,195 ft | -17 ft | 22 ft |
| David Lee Roth | | Lefthand OHV | | 1 mile | -881 ft | 59 ft |
| David Lee Roth Exit Trail 286.1E | | Lefthand OHV | | 1,007 ft | -60 ft | |
| Dead Pete Connector | | Lefthand OHV | | 105 ft | -7 ft | |
| Dead-end | | Walker Mountain | | 443 ft | -6 ft | |
| Deadass 286.1C | | Lefthand OHV | | 2,283 ft | -370 ft | |
| Deadass | | Lefthand OHV | | 213 ft | -21 ft | |
| Deadass | | Lefthand OHV | | 72 ft | -17 ft | |
| Diagonal Highway Protected Cycle Track | | Valmont Bike Park | | 2,238 ft | -16 ft | |
| Dirt 101 | | Valmont Bike Park | | 1,463 ft | -1 ft | 6 ft |
| Dirt Jumps | | Valmont Bike Park | | 428 ft | | |
| Doudy Draw | | Marshall Mesa/Doudy Draw/Flatirons Vista | | 2 miles | -64 ft | 518 ft |
| Dual Slalom | | Valmont Bike Park | | 728 ft | -22 ft | |
| Eagle (East) | | Boulder Valley Ranch / Boulder Reservoir | | 1 mile | -144 ft | 45 ft |
| Eagle (West) | | Boulder Valley Ranch / Boulder Reservoir | | 2 miles | -228 ft | 27 ft |
| East Boulder (South) | | Teller Farm Open Space | | 2 miles | -98 ft | |
| East Boulder Trail (Gunbarrel Farm) | | Teller Farm Open Space | | 3 miles | -130 ft | 197 ft |
| East Boulder Trail (White Rocks) | | Teller Farm Open Space | | 2 miles | -74 ft | 208 ft |
| Elk Trail | | Walker Mountain | | 2 miles | -1,531 ft | 16 ft |
| Espresso | | Valmont Bike Park | | 614 ft | -25 ft | |
| Espresso Alt | | Valmont Bike Park | | 128 ft | -3 ft | |
| Ethel Harrold | | Walker Ranch | | 3,294 ft | -153 ft | |
| Fairview View Road 286.1H | | Lefthand OHV | | 2,336 ft | -219 ft | 38 ft |
| Fireman Hill 286.1D | | Lefthand OHV | | 5,249 ft | -742 ft | 40 ft |
| Fireman Hill 286.1D | | Lefthand OHV | | 2,441 ft | -44 ft | 309 ft |
| Flatiron Vista connector | | Marshall Mesa/Doudy Draw/Flatirons Vista | | 1,871 ft | | 32 ft |
| Flatirons Vista Rd | | Marshall Mesa/Doudy Draw/Flatirons Vista | | 1 mile | -12 ft | 209 ft |
| Flatirons Vista South | | Marshall Mesa/Doudy Draw/Flatirons Vista | | 2 miles | -107 ft | 253 ft |
| Foothills - North | | Boulder Valley Ranch / Boulder Reservoir | | 1 mile | -89 ft | 180 ft |
| Foothills - South | | Boulder Valley Ranch / Boulder Reservoir | | 4,977 ft | -75 ft | 38 ft |
| Forsyth Canyon Trail #852 | | Boulder | | 2 miles | -333 ft | 523 ft |
| Fourmile Link | | Betasso Preserve | | 4,281 ft | -203 ft | 234 ft |
| Gear Down | | Valmont Bike Park | | 299 ft | | 8 ft |
| Gear Down | | Valmont Bike Park | | 95 ft | | 3 ft |
| Gillespie Gulch | | Walker Mountain | | 2,037 ft | | 173 ft |
| Gillespie Gulch Connector | | Walker Mountain | | 1,873 ft | -139 ft | 38 ft |