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 |
| South Fork Deep Creek | Stream | | Mineral | 47 06 47 N | 114 41 58 W |
| South Fork Deep Creek | Stream | | Park | 45 32 31 N | 110 32 15 W |
| South Fork Deep Creek | Stream | | Teton | 47 43 26 N | 112 36 52 W |
| South Fork Deer Creek | Stream | | Big Horn | 45 02 41 N | 106 40 22 W |
| South Fork Deer Creek | Stream | | Dawson | 47 15 03 N | 104 56 52 W |
| South Fork Dickey Creek | Stream | | Flathead | 48 17 19 N | 113 40 12 W |
| South Fork Divide Creek | Stream | | Beaverhead | 44 49 56 N | 113 16 36 W |
| South Fork Divide Creek | Stream | | Silver Bow | 45 53 13 N | 112 46 27 W |
| South Fork Dodge Creek | Stream | | Lincoln | 48 55 42 N | 115 18 23 W |
| South Fork Doolittle Creek | Stream | | Beaverhead | 45 42 17 N | 113 19 37 W |
| South Fork Douglas Creek | Stream | | Granite | 46 29 19 N | 113 08 04 W |
| South Fork Dry Blood Creek | Stream | | Petroleum | 47 13 47 N | 108 18 16 W |
| South Fork Dry Blood Creek Dam | Dam | 876 | Petroleum | 47 12 42 N | 108 21 02 W |
| South Fork Dry Cottonwood Creek | Stream | | Deer Lodge | 46 12 39 N | 112 39 02 W |
| South Fork Dry Creek | Stream | | Big Horn | 45 21 18 N | 106 55 14 W |
| South Fork Dry Creek | Stream | | Carbon | 45 12 50 N | 109 01 11 W |
| South Fork Dry Creek | Stream | | Carter | 45 28 09 N | 104 53 37 W |
| South Fork Dry Creek | Stream | | Gallatin | 45 59 34 N | 110 47 25 W |
| South Fork Dry Creek | Stream | | Sanders | 48 09 16 N | 115 54 09 W |
| South Fork Dry Fork Marias River | Stream | | Pondera | 48 09 42 N | 112 21 38 W |
| South Fork Dry Gulch | Valley | | Jefferson | 46 13 55 N | 112 27 34 W |
| South Fork Dry Park Creek | Stream | | Flathead | 48 02 06 N | 113 35 44 W |
| South Fork Duck Creek | Stream | | Fallon | 46 07 05 N | 104 20 10 W |
| South Fork Duck Creek | Stream | | Valley | 47 56 36 N | 106 37 05 W |
| South Fork Dupuyer Creek | Stream | | Teton | 48 05 37 N | 112 41 30 W |
| South Fork Edwards Creek | Stream | | Treasure | 46 13 45 N | 107 27 35 W |
| South Fork Eightmile Creek | Stream | | Meagher | 46 37 40 N | 110 42 09 W |
| South Fork Eightmile Creek | Stream | | Park | 45 27 08 N | 110 51 01 W |
| South Fork Elk Creek | Stream | | Missoula | 47 28 49 N | 113 51 24 W |
| South Fork Elk Creek | Stream | | Park | 46 03 12 N | 110 36 23 W |
| South Fork Elk Creek | Stream | | Powder River | 45 21 08 N | 105 57 17 W |
| South Fork Everson Creek | Stream | | Beaverhead | 44 54 44 N | 113 17 57 W |
| South Fork Fish Creek | Stream | | Mineral | 46 55 37 N | 114 41 45 W |
| South Fork Fivemile Creek | Stream | | Lincoln | 48 31 38 N | 115 05 22 W |
| South Fork Fivemile Creek | Stream | | Yellowstone | 45 54 11 N | 108 39 34 W |
| South Fork Flathead Creek | Stream | | Gallatin | 45 58 20 N | 110 54 57 W |
| South Fork Flathead River | Stream | | Flathead | 48 23 22 N | 114 05 18 W |
| South Fork Flatwillow Creek | Stream | | Fergus | 46 50 42 N | 108 54 13 W |
| South Fork Flower Creek | Stream | | Lincoln | 48 20 38 N | 115 36 05 W |
| South Fork Foster Creek | Stream | | Custer | 45 54 04 N | 105 53 26 W |
| South Fork Fourmile Creek | Stream | | Big Horn | 45 14 07 N | 106 51 42 W |
| South Fork Fox Creek | Stream | | Beaverhead | 45 14 28 N | 113 15 28 W |
| South Fork Freeman Creek | Stream | | Meagher | 46 53 45 N | 111 25 24 W |
| South Fork Gilbert Creek | Stream | | Missoula | 46 40 60 N | 113 43 41 W |
| South Fork Glenn Creek | Stream | | Lewis and Clark | 47 40 04 N | 112 56 38 W |
| South Fork Good Luck Creek | Stream | | Big Horn | 45 18 21 N | 107 28 48 W |
| South Fork Goodale Coulee | Valley | | Daniels | 48 54 57 N | 105 05 56 W |
| South Fork Gorman Creek | Stream | | Chouteau | 48 11 30 N | 109 55 37 W |
| South Fork Grapevine Creek | Stream | | Big Horn | 45 20 16 N | 108 02 36 W |
| South Fork Greasewood Creek | Stream | | Glacier | 48 40 15 N | 112 59 01 W |
| South Fork Greenhorn Creek | Stream | | Madison | 45 06 40 N | 112 03 04 W |
| South Fork Greenman Coulee | Valley | | Hill | 48 56 13 N | 109 41 53 W |
| South Fork Grove Creek | Stream | | Carbon | 45 05 43 N | 109 09 56 W |
| South Fork Grove Creek | Stream | | Stillwater | 45 29 02 N | 109 34 08 W |
| South Fork Halfway Coulee | Valley | | Phillips | 48 14 16 N | 108 01 12 W |
| South Fork Hand Creek | Stream | | Flathead | 48 18 49 N | 114 48 36 W |
| South Fork Hawkins Creek | Stream | | Lincoln | 49 02 60 N | 115 57 04 W |
| South Fork Hay Coulee | Valley | | Big Horn | 45 26 34 N | 107 50 13 W |
| South Fork Hayes Creek | Stream | | Beaverhead | 45 13 10 N | 113 06 57 W |
| South Fork Hell Roaring Creek | Stream | | Gallatin | 45 21 44 N | 111 18 51 W |
| South Fork Hemler Creek | Stream | | Flathead | 48 14 33 N | 114 06 00 W |
| South Fork Hilgard Creek | Stream | | Madison | 44 56 23 N | 111 23 48 W |
| South Fork Hill | Summit | 1639 | Lincoln | 48 40 43 N | 115 29 30 W |
| South Fork Hinch Creek | Stream | | Madison | 45 15 38 N | 112 10 16 W |
| South Fork Hoover Creek | Stream | | Cascade | 47 00 57 N | 110 43 34 W |
| South Fork Horse Creek | Stream | | McCone | 47 29 22 N | 105 49 12 W |
| South Fork Horse Creek | Stream | | Park | 45 59 24 N | 110 32 58 W |
| South Fork Horse Creek | Stream | | Powder River | 45 37 18 N | 105 12 58 W |
| South Fork Horse Creek | Stream | | Wibaux | 46 53 12 N | 104 24 30 W |
| South Fork Horse Creek | Stream | | Yellowstone | 46 18 11 N | 107 35 48 W |
| South Fork Hot Springs Creek | Stream | | Madison | 45 33 15 N | 111 47 21 W |
| South Fork Huey Creek | Stream | | Dawson | 46 52 31 N | 104 48 46 W |
| South Fork Humbug Creek | Stream | | Lewis and Clark | 46 56 04 N | 112 36 25 W |
| South Fork Hyde Creek | Stream | | Madison | 45 00 13 N | 111 44 10 W |
| South Fork Indian Coulee | Valley | | Big Horn | 45 38 41 N | 106 52 27 W |
| South Fork Indian Creek | Stream | | Madison | 45 31 28 N | 112 04 28 W |
| South Fork Indian Creek | Stream | | Madison | 45 06 04 N | 111 33 46 W |
| South Fork Indian Creek Mine | Mine | 2643 | Madison | 45 30 55 N | 112 03 13 W |
| South Fork Jack Creek | Stream | | Madison | 45 20 04 N | 111 29 23 W |
| South Fork Jackson Creek | Stream | | Lincoln | 48 28 32 N | 115 20 43 W |