Feature Name | Class | Elev. meters | County | Latitude DMS | Longitude DMS |
| South Fork Coal Creek | Stream | | Flathead | 48 40 49 N | 114 20 45 W |
| South Fork Cold Creek | Stream | | Missoula | 47 33 12 N | 113 45 37 W |
| South Fork Cooks Creek | Stream | | Meagher | 46 26 22 N | 111 02 20 W |
| South Fork Corral Creek | Stream | | Big Horn | 45 04 42 N | 106 30 09 W |
| South Fork Corral Creek | Stream | | Carter | 45 29 54 N | 104 37 07 W |
| South Fork Cottonwood Creek | Stream | | Big Horn | 45 54 06 N | 107 20 56 W |
| South Fork Cottonwood Creek | Stream | | Fallon | 46 26 57 N | 104 47 52 W |
| South Fork Cottonwood Creek | Stream | | Fergus | 47 27 02 N | 109 06 09 W |
| South Fork Cottonwood Creek | Stream | | Jefferson | 45 58 24 N | 111 56 13 W |
| South Fork Cottonwood Creek | Stream | | Powell | 46 22 00 N | 112 36 24 W |
| South Fork Cottonwood Creek | Stream | | Powell | 46 48 58 N | 112 58 17 W |
| South Fork Cottonwood Creek | Stream | | Rosebud | 45 41 58 N | 106 44 47 W |
| South Fork Cottonwood Creek | Stream | | Rosebud | 46 04 03 N | 106 30 02 W |
| South Fork Cottonwood Creek | Stream | | Stillwater | 45 41 25 N | 109 00 04 W |
| South Fork Cottonwood Creek | Stream | | Wibaux | 47 14 44 N | 104 17 47 W |
| South Fork Countryman Creek | Stream | | Stillwater | 45 38 07 N | 109 31 53 W |
| South Fork Courtneys Creek | Stream | | Judith Basin | 46 58 34 N | 110 10 42 W |
| South Fork Cow Creek | Stream | | Blaine | 48 05 28 N | 109 20 10 W |
| South Fork Cow Creek | Stream | | Rosebud | 45 51 48 N | 106 27 14 W |
| South Fork Cripple Horse Creek | Stream | | Lincoln | 48 28 22 N | 115 12 48 W |
| South Fork Crooked Creek | Stream | | Yellowstone | 46 00 24 N | 108 27 40 W |
| South Fork Crow Creek | Stream | | Broadwater | 46 17 24 N | 111 43 10 W |
| South Fork Cut Bank Creek | Stream | | Glacier | 48 34 55 N | 113 07 44 W |
| South Fork Cutbank Creek | Stream | | Fergus | 47 35 22 N | 109 13 17 W |
| South Fork Daisy Dean Creek | Stream | | Park | 46 03 04 N | 110 31 50 W |
| South Fork Dale Creek | Stream | | Big Horn | 45 18 53 N | 106 56 13 W |
| South Fork Deadman Creek | Stream | | Carbon | 45 11 14 N | 108 14 12 W |
| South Fork Deadman Creek | Stream | | Meagher | 46 47 37 N | 110 40 30 W |
| South Fork Dearborn River | Stream | | Lewis and Clark | 47 11 40 N | 112 11 10 W |
| South Fork Deep Creek | Stream | | Meagher | 47 03 17 N | 111 09 56 W |