| 1 | Arkansas River | Class II-III - 27.9 miles long (Highway Rincon to Pinnacle Rock)
| -blank- County |
| 2 | Arkansas River | Class III - 8.7 miles long (Highway Pinnacle Rock Launch to Parkdale Launch)
| Chaffee/Fremont County |
| 3 | Arkansas River | Class III-IV - 9 miles long (Parkdale Launch to Canon City)
| Fremont County |
| 4 | Bear Creek | Class III-V - 6 miles long (Idledale to Morrison)
| Jefferson County |
| 5 | Big Thompson River | Class II-IV+(V+) - 11.5 miles long (Lake Estes to Drake)
| Larimer County |
| 6 | Big Thompson River | Class III-IV - 7.75 miles long (Drake to Canyon Mouth)
| Larimer County |
| 7 | Boulder Creek | Class IV-V(V+) - 2 miles long (Mile Marker 32 to Blue Bridge)
| Boulder County |
| 8 | Boulder Creek | Class II-III - 3 miles long (Eben G Fine Park to CU Greenhouse)
| Boulder County |
| 9 | Boulder Creek | Class IV - 6 miles long (Blue Bridge to Eben G Fine Park)
| Boulder County |
| 10 | Boulder Creek | Class V - 2.5 miles long (Gun Shy to Jasper Creek)
| Boulder County |
| 11 | Boulder Creek - North | Class V+ - 2.25 miles long (Switzerland Park to Boulder Falls)
| Boulder County |
| 12 | Boulder Creek - South | Class V+ - 2.6 miles long (Pinecliffe to Gross Mountain Reservoir)
| Boulder County |
| 13 | Boulder Creek - South | Class V+ - 0.75 miles long (Eldorado Canyon)
| Boulder County |
| 14 | Boulder Creek - South | Class IV(V+) - 7.2 miles long (Gross Mountain Reservoir to Eldorado State Park)
| Boulder County |
| 15 | Boulder Creek - South | Class IV - 6 miles long (Rollinsville to Pinecliffe)
| Boulder County |
| 16 | Cache La Poudre River | Class III-IV - 2 miles long (below Pineview Falls to Mile Marker 114.7)
| Larimer County |
| 17 | Cache La Poudre River | Class IV - 2 miles long (Poudre Park Picnic Gound to below Pine View Falls)
| Larimer County |
| 18 | Cache La Poudre River | Class II-III - 2.4 miles long (below Filter Plant to Picnic Rock Access)
| Larimer County |
| 19 | Cache La Poudre River - North Fork | Class II-III - 11 miles long (Livermore Bridge to Main Stem)
| Larimer County |
| 20 | Clear Creek | Class III-IV - 5.5 miles long (Lawson to Idaho Springs)
| Clear Creek County |
| 21 | Clear Creek | Class IV - 5.5 miles long (mile 267 to Golden)
| Clear Creek County |
| 22 | Clear Creek | Class IV-V(V+) - 5.5 miles long (Green Bay Rock)
| Clear Creek County |
| 23 | Saint Vrain Creek - North | Class IV(V) - 1.8 miles long (Buttonrock Preserve to CR 80)
| Boulder County |
| 24 | Saint Vrain Creek - North | Class V+ - 13 miles long (Peak to Peak Highway to Buttonrock Preserve)
| Boulder County |
| 25 | Saint Vrain Creek - North | Class III - 6.5 miles long (CR 80 to Lyons)
| Boulder County |
| 26 | Saint Vrain Creek - South | Class V+ - 5 miles long (Confluence to 1 in 5 Rapid)
| Boulder County |
| 27 | Saint Vrain Creek - South | Class V+ - 5.5 miles long (Ceran St. Vrain Trailhead to Confluence)
| Boulder County |
| 28 | South Platte River | Class III-IV - 1 miles long (Confluence to Strontia Springs Reservoir)
| Jefferson/ Douglas County |
| 29 | South Platte River | Class I-III - 12 miles long (Deckers to confluence with North Fork)
| Jefferson/ Douglas County |
| 30 | South Platte River | Class V+ - 7.3 miles long (Lake George to Cheesman Reservoir)
| Park County |
| 31 | South Platte River | Class III-V(V+) - 8 miles long (Eleven Mile Reservoir to Lake George)
| Jefferson County |
| 32 | South Platte River - North Fork | Class IV-V - 10.5 miles long (Bailey to Pine)
| Park/Jefferson County |
| 33 | South Platte River - North Fork | Class III-IV - 7 miles long (Buffalo Creek to South Platte)
| Jefferson County |
