Feature Name | Class | Elev. meters | County | Latitude DMS | Longitude DMS |
| Sawtooth Ridge | Ridge | 2410 | Lewis and Clark | 47 33 02 N | 112 40 40 W |
| Sawtooth Ridge | Ridge | 3169 | Madison | 45 02 46 N | 111 28 35 W |
| Sawtooth Trail | Trail | 2784 | Beaverhead | 44 48 22 N | 112 13 35 W |
| Sawyer (historical) | Locale | 1598 | Beaverhead | 45 07 50 N | 112 43 18 W |
| Sawyer Creek | Stream | | Missoula | 47 14 03 N | 113 32 19 W |
| Sawyer School (historical) | School | 1135 | Fergus | 47 26 24 N | 109 24 30 W |
| Sawyers Trailer Park | Populated Place | 1204 | Fergus | 47 03 45 N | 109 25 42 W |
| Saxton Independent Elevator (historical) | Locale | 586 | Roosevelt | 48 08 35 N | 104 31 07 W |
| Sayer Butte | Summit | 1145 | Blaine | 48 23 29 N | 109 17 52 W |
| Sayle | Populated Place | 1148 | Powder River | 45 13 37 N | 105 59 44 W |
| Sayle Hall | Locale | 1179 | Powder River | 45 06 33 N | 106 02 47 W |
| Saylor Dam | Dam | 909 | Garfield | 47 22 00 N | 107 24 38 W |
| Saylor Reservoir Dam | Dam | 923 | Garfield | 47 19 36 N | 107 24 20 W |
| Saypo | Populated Place | 1410 | Teton | 47 48 32 N | 112 33 58 W |
| Saypo Post Office (historical) | Post Office | 1410 | Teton | 47 48 32 N | 112 33 58 W |
| Saypo School (historical) | School | 1410 | Teton | 47 48 32 N | 112 33 58 W |
| Scab Rock Mountain | Summit | 2402 | Meagher | 46 12 38 N | 110 33 38 W |
| Scalese Ranch | Locale | 1108 | Toole | 48 46 48 N | 111 24 35 W |
| Scalp Creek | Stream | | Flathead | 47 58 57 N | 113 02 31 W |
| Scalp Mountain | Summit | 1747 | Lincoln | 48 51 26 N | 115 19 41 W |
| Scalplock Mountain | Summit | 2099 | Flathead | 48 17 60 N | 113 34 29 W |
| Scandia Cemetery | Cemetery | 666 | Sheridan | 48 49 28 N | 104 07 47 W |
| Scandia Cemetery | Cemetery | 959 | Yellowstone | 45 58 20 N | 108 20 30 W |
| Scandia Lutheran Church (historical) | Church | 809 | Phillips | 48 11 21 N | 107 47 11 W |
| Scandia Lutheran Church Cemetery | Cemetery | 809 | Phillips | 48 11 20 N | 107 47 12 W |
| Scandia Lutheran Free Church (historical) | Church | 666 | Sheridan | 48 49 28 N | 104 07 47 W |
| Scandia School | School | 961 | Yellowstone | 45 58 23 N | 108 20 30 W |
| Scandinavian Methodist Episcopal Church (historical) | Church | 1071 | Cascade | 47 23 05 N | 110 55 36 W |
| Scanlan Lake | Lake | 717 | Custer | 46 24 13 N | 105 51 11 W |
| Scapegoat Mountain | Summit | 2800 | Lewis and Clark | 47 18 36 N | 112 49 45 W |
| Scapegoat Wilderness | Reserve | 2120 | Lewis and Clark | 47 19 60 N | 112 50 03 W |
| Scarecrow Gulch | Valley | | Meagher | 46 41 52 N | 111 21 44 W |
| Scarface Creek | Stream | | Powell | 47 33 36 N | 113 18 17 W |
| Scarface Mountain | Summit | 2523 | Pondera | 48 10 48 N | 113 01 12 W |
| Scarface Peak | Summit | 2540 | Powell | 47 32 01 N | 113 21 50 W |
| Scarlet Mountain | Summit | 2478 | Lewis and Clark | 47 27 58 N | 113 00 50 W |
| Scat Lake | Lake | 2838 | Carbon | 45 06 39 N | 109 42 51 W |
| Scattering Springs | Spring | 1444 | Teton | 47 36 57 N | 112 49 36 W |
| Scenery Mountain | Summit | 2079 | Lincoln | 48 24 60 N | 115 42 60 W |
| Scenery Mountain Lookout Station | Locale | 2101 | Lincoln | 48 24 58 N | 115 43 03 W |
| Scenic Lakes | Lake | 2241 | Lake | 47 16 53 N | 113 51 50 W |
| Scenic Point | Summit | 2228 | Glacier | 48 29 06 N | 113 19 22 W |
| Scenic Waterfalls Campground | Locale | 1734 | Teton | 47 51 34 N | 112 46 19 W |
| Scepter (historical) | Locale | 1082 | Missoula | 46 43 33 N | 113 38 43 W |
| Schaak Ranch | Locale | 1357 | Big Horn | 45 22 37 N | 108 20 36 W |
| Schabert Mine | Mine | 1742 | Broadwater | 46 37 53 N | 111 23 27 W |
| Schabert Mine | Mine | 1717 | Broadwater | 46 37 52 N | 111 23 29 W |
| Schaeffer Dam | Dam | 982 | Missoula | 47 03 18 N | 114 21 51 W |
| Schafer Creek | Stream | | Flathead | 48 04 17 N | 113 15 04 W |
| Schafer Creek | Stream | | Gallatin | 45 47 13 N | 111 04 19 W |
| Schafer Meadows | Flat | 1477 | Flathead | 48 04 40 N | 113 14 54 W |
| Schafer Ranch | Locale | 1194 | Liberty | 48 57 46 N | 111 09 45 W |
| Schafer Ranger Station | Locale | 1478 | Flathead | 48 04 43 N | 113 14 31 W |
| Schafer Springs | Spring | 986 | Flathead | 48 24 60 N | 114 09 12 W |
| Schafer-US Forest Service Airport | Airport | 1501 | Flathead | 48 05 14 N | 113 15 06 W |
| Schaffer Island | Island | 613 | Dawson | 47 13 55 N | 104 37 47 W |
| Schaffer Number 1 Dam | Dam | 950 | Powder River | 45 25 36 N | 105 28 08 W |
| Schaffs RV Court | Locale | 1113 | Golden Valley | 46 17 50 N | 109 15 32 W |
| Schandeimeir School (historical) | School | 899 | Phillips | 48 51 30 N | 108 12 57 W |
| Schaudel Reservoir | Reservoir | 977 | Rosebud | 45 29 28 N | 106 17 17 W |
| Scheers Trailer Court | Locale | 733 | McCone | 47 25 28 N | 105 34 54 W |
| Schellenberger School (historical) | School | 953 | Petroleum | 47 01 10 N | 108 25 47 W |
| Schempp School (historical) | School | 703 | Phillips | 48 26 53 N | 107 49 24 W |
| Schessler Number 10 Dam | Dam | 889 | Rosebud | 46 47 06 N | 106 41 38 W |
| Schiffer Number 6 Dam | Dam | 902 | Rosebud | 46 45 36 N | 106 59 32 W |
| Schiffman (historical) | Locale | 1498 | Deer Lodge | 46 06 60 N | 112 48 03 W |
| Schildt Cemetery | Cemetery | 1564 | Glacier | 48 34 38 N | 113 15 41 W |
| Schiller Creek | Stream | | Powder River | 45 43 44 N | 106 05 29 W |
| Schiller Lode Number 1 Mine | Mine | 2850 | Park | 45 02 56 N | 109 55 43 W |
| Schiller Lode Number 2 Mine | Mine | 2882 | Park | 45 02 55 N | 109 55 47 W |
| Schiller Reservoir | Reservoir | 1001 | Powder River | 45 41 53 N | 106 05 54 W |
| Schilling | Populated Place | 933 | Missoula | 46 57 51 N | 114 12 06 W |
| Schilling School (historical) | School | 901 | Blaine | 48 40 49 N | 108 45 51 W |
| Schilling Siding | Locale | 945 | Missoula | 46 57 55 N | 114 11 04 W |
| Schindal Battle I Dam | Dam | 1723 | Meagher | 46 21 18 N | 111 00 09 W |
| Schindler Ranch | Locale | 1410 | Park | 45 48 23 N | 110 32 03 W |
| Schively Gulch | Valley | | Granite | 46 21 31 N | 113 38 03 W |
| Schlemmer Number 1 Dam | Dam | 1066 | Carbon | 45 25 24 N | 108 52 51 W |
| Schlenker Dam | Dam | 815 | Prairie | 47 07 36 N | 106 03 50 W |
| Schlepp Ranch | Locale | 1283 | Lewis and Clark | 47 29 13 N | 112 26 58 W |
| Schlesinger Number 1 Dam | Dam | 884 | Rosebud | 46 46 06 N | 107 09 08 W |
| Schlesinger Number 2 Dam | Dam | 865 | Rosebud | 46 44 60 N | 107 12 20 W |
| Schlesinger Number 3 Dam | Dam | 899 | Rosebud | 46 45 12 N | 107 03 44 W |
| Schlesinger Number 4 Dam | Dam | 899 | Rosebud | 46 44 60 N | 107 03 32 W |
| Schlesinger Number 5 Dam | Dam | 857 | Rosebud | 46 44 18 N | 107 12 38 W |
| Schlesinger Number 6 Dam | Dam | 894 | Rosebud | 46 44 18 N | 107 09 32 W |
| Schlesinger Number 7 Dam | Dam | 858 | Rosebud | 46 44 36 N | 107 12 38 W |
| Schlesinger Ranch | Locale | 859 | Rosebud | 46 44 21 N | 107 12 31 W |
| Schley | Populated Place | 1078 | Missoula | 47 06 12 N | 114 03 14 W |
| Schley Creek | Stream | | Missoula | 47 05 33 N | 114 02 47 W |
| Schley Mountain | Summit | 2230 | Mineral | 46 48 36 N | 114 46 17 W |
| Schley Post Office (historical) | Post Office | 1256 | Judith Basin | 46 59 55 N | 109 52 43 W |
| Schley Saddle | Gap | 2069 | Mineral | 46 48 55 N | 114 46 09 W |
| Schlinker School (historical) | School | 871 | Prairie | 47 05 28 N | 105 59 32 W |
| Schlosser Creek | Stream | | Custer | 46 30 39 N | 105 29 40 W |
| Schmidelkoffer Dutton Vogers Ditch | Canal | 1421 | Sweet Grass | 45 41 08 N | 110 03 22 W |
| Schmidt Creek | Stream | | Lake | 48 00 37 N | 113 55 42 W |
| Schmidt Dam | Dam | 818 | Hill | 48 19 24 N | 110 05 09 W |
| Schmidt Number 1 Dam | Dam | 968 | Rosebud | 46 39 36 N | 107 31 32 W |
| Schmidt Reservoir | Reservoir | 998 | Carter | 45 55 31 N | 104 47 57 W |
| Schmidt Reservoir | Reservoir | 818 | Hill | 48 19 19 N | 110 05 05 W |
| Schmidts Chute Ski Trail | Trail | 1454 | Flathead | 48 29 06 N | 114 21 13 W |
| Schmittou Reservoir | Reservoir | 842 | Phillips | 48 50 56 N | 107 28 57 W |
| Schmitz Lakes | Lake | 974 | Sanders | 47 33 24 N | 114 35 00 W |
| Schmitz Mountain | Summit | 1504 | Sanders | 47 33 32 N | 114 32 43 W |
| Schmoeckel School (historical) | School | 923 | Phillips | 47 58 15 N | 108 16 38 W |
| Schnitzler Ranch | Locale | 653 | Roosevelt | 48 21 36 N | 104 50 24 W |
| Schofield School (historical) | School | 1062 | Carter | 45 53 17 N | 104 44 34 W |
| Scholtztown | Populated Place | 1417 | Judith Basin | 47 02 16 N | 110 13 37 W |
| Schoneke Coulee | Valley | | Fergus | 47 25 48 N | 108 28 52 W |