| Ohio Creek Above Mouth Near Gunnison, CO |
| Piceance Creek At White River, CO |
| Piceance Creek Below Ryan Gulch, Near Rio Blanco, CO |
| Piedra River Near Arboles, CO |
| Piney River Near State Bridge, CO |
| Plateau Creek Near Cameo, CO |
| Plum Creek At Titan Road Near Louviers, CO |
| Plum Creek Near Sedalia, CO |
| Purgatoire River At Madrid, CO |
| Purgatoire River At Rock Crossing Near Timpas, CO |
| Purgatoire River Below Trinidad Lake, CO |
| Purgatoire River Near Las Animas, CO |
| Purgatoire River Near Thatcher, CO |
| Ranch Creek Near Fraser, CO |
| Red Rock Canyon Creek At Mouth Near Thatcher, CO |
| Ripley Ditch From L. Fountain Creek At Ft. Carson, CO |
| Roaring Fork River Above Difficult Creek Near Aspen, CO |
| Roaring Fork River Above Lost Man Creek Near Aspen, CO |
| Roaring Fork River At Glenwood Springs, CO |
| Roaring Fork River Near Aspen, CO |
| Roaring Fork River Near Emma, CO |
| Rock Creek Above Fort Carson Reservation, CO |
| Sand Creek Above Burlington Ditch Near Commerce City, CO |
| Sand Creek Above Mouth At Colorado Springs, CO |
| Sand Creek At Mouth Near Commerce City, CO |
| San Juan River At Four Corners, CO |
| San Juan River At Pagosa Springs, CO |
| San Juan River Near Carracas, CO |
| San Miguel River At Brooks Bridge Near Nucla, CO |
| San Miguel River At Uravan, CO |
| San Miguel River Near Placerville, CO |
| Slater Fork Near Slater, CO |
| Slate River Above Baxter Gl @Hwy 135 Near Crested Butte, CO |
| Snake River Near Montezuma, CO |
| So. Platte River Below Brush Creek Near Trumbull, CO |
| South Fork Of Williams Fork Near Leal, CO |
| South Fork San Miguel River Near Ophir, CO |
| South Platte River Above Cheesman Lake, CO |
| South Platte River At 64Th Ave. Commerce City, CO |
| South Platte River At Englewood, CO |
| South Platte River At Fort Lupton, CO |
| South Platte River At Fort Morgan, CO |
| South Platte River Below Union Ave, At Englewood, CO |
| St. Charles River At Vineland, CO |
| St. Louis Creek Near Fraser, CO |
| Straight Creek Below Laskey Gulch Near Dillon, CO |
| Strobel Ditch From Turkey Creek At Ft. Carson, CO |
| St Vrain Creek Below Boulder Creek At Hwy 119 Near Longmont, CO |
| St. Vrain Creek Below Longmont, CO |
| Surface Creek At Cedaredge, CO |
