Feature Name | Class | Elev. meters | County | Latitude DMS | Longitude DMS |
| Upper Lost Cabin Mine | Mine | 1324 | Missoula | 47 08 54 N | 114 26 28 W |
| Upper Lulu Adit Mine | Mine | 3021 | Park | 45 04 05 N | 109 57 30 W |
| Upper Madison School (historical) | School | 1321 | Gallatin | 45 44 36 N | 111 28 31 W |
| Upper Magpie Reservoir | Reservoir | 708 | Dawson | 46 56 48 N | 104 39 26 W |
| Upper Magpie Reservoir Dam | Dam | 725 | Dawson | 46 57 18 N | 104 39 14 W |
| Upper Magpie Spring | Spring | 1918 | Beaverhead | 45 11 07 N | 112 51 52 W |
| Upper Mambo Ski Trail | Trail | 1175 | Lincoln | 48 36 18 N | 115 37 50 W |
| Upper Mason Lake | Lake | 2654 | Madison | 45 37 14 N | 111 59 47 W |
| Upper McGuire Creek | Stream | | McCone | 47 34 49 N | 105 59 53 W |
| Upper Miner Lakes | Lake | 2449 | Beaverhead | 45 15 47 N | 113 40 33 W |
| Upper Mission Lake | Lake | 1210 | Glacier | 48 31 49 N | 112 40 52 W |
| Upper Missouri National Wild and Scenic River | Park | 686 | Phillips | 47 37 48 N | 108 41 10 W |
| Upper Morningstar Ski Trail | Trail | 2365 | Madison | 45 16 51 N | 111 24 24 W |
| Upper Mullys Ski Trail | Trail | 1454 | Flathead | 48 29 06 N | 114 21 13 W |
| Upper Musselshell Historical Society Museum | Building | 1283 | Wheatland | 46 26 07 N | 109 49 53 W |
| Upper Nancy Lee Mine | Mine | 1253 | Mineral | 47 16 22 N | 114 57 23 W |
| Upper Newhouse Coulee | Valley | | Garfield | 47 10 16 N | 107 53 04 W |
| Upper Ninemile Mine | Mine | 1584 | Missoula | 47 12 45 N | 114 39 58 W |
| Upper North Heidelberg Mine | Mine | 1465 | Sanders | 48 03 21 N | 115 37 39 W |
| Upper Number 2 Gulch Mine | Mine | 1519 | Broadwater | 46 37 10 N | 111 29 51 W |
| Upper Number Two Gulch | Valley | | Broadwater | 46 37 06 N | 111 29 21 W |
| Upper O'Dell Coulee Reservoir | Reservoir | 672 | McCone | 47 53 58 N | 105 42 32 W |
| Upper Old Nelson Mine | Mine | 1558 | Fergus | 47 10 27 N | 109 13 04 W |
| Upper Paget Well | Well | 1015 | Powder River | 45 22 49 N | 106 11 37 W |
| Upper Paradise School (historical) | School | 1497 | Fergus | 46 53 45 N | 109 28 48 W |
| Upper Paradise Ski Trail | Trail | 1810 | Missoula | 47 01 25 N | 113 59 50 W |
| Upper Park | Flat | 1635 | Cascade | 47 06 47 N | 111 39 13 W |
| Upper Parker Flat Boat Camp | Locale | 1164 | Cascade | 47 05 52 N | 111 16 47 W |
| Upper Phyllis Lake | Lake | 2483 | Granite | 45 56 48 N | 113 31 20 W |
| Upper Pot Rustler Mine | Mine | 2353 | Madison | 45 29 05 N | 112 00 13 W |
| Upper Prairie Goat Dam | Dam | 739 | Dawson | 46 54 00 N | 104 37 50 W |
| Upper Prosperity Mine | Mine | 1414 | Mineral | 47 17 05 N | 114 53 48 W |
| Upper Pryor School (historical) | School | 1286 | Big Horn | 45 24 23 N | 108 32 02 W |
| Upper Quaintance Spring | Spring | 2037 | Jefferson | 46 04 34 N | 112 00 48 W |
| Upper Rebellion Mine | Mine | 2179 | Cascade | 46 56 53 N | 110 42 16 W |
| Upper Red Rock Lake | Lake | 2016 | Beaverhead | 44 36 54 N | 111 43 54 W |
| Upper Reservoir | Reservoir | 1833 | Silver Bow | 45 50 22 N | 112 31 32 W |
| Upper Reservoir | Reservoir | 1863 | Silver Bow | 45 50 36 N | 112 31 27 W |
| Upper Riddell Lake | Lake | 2218 | Lake | 47 16 40 N | 113 52 23 W |
| Upper Rock Canyon Spring | Spring | 2430 | Beaverhead | 44 47 17 N | 112 54 14 W |
| Upper Rocky Hock Creek | Stream | | Hill | 48 20 35 N | 109 37 23 W |
| Upper Ross Mine | Mine | 1924 | Gallatin | 45 38 42 N | 110 48 10 W |
| Upper Rotten Grass School (historical) | School | 1183 | Big Horn | 45 13 55 N | 107 34 57 W |
| Upper Ruby Cemetery | Cemetery | 1696 | Madison | 45 09 07 N | 112 08 46 W |
| Upper Ruby School (historical) | School | 1705 | Madison | 45 08 37 N | 112 07 45 W |
| Upper Sage Creek | Stream | | Park | 45 19 01 N | 110 31 06 W |
| Upper Saint Regis Lake | Lake | 1693 | Mineral | 47 25 35 N | 115 44 55 W |
| Upper Sand Coulee School (historical) | School | 1402 | Cascade | 47 11 18 N | 111 06 23 W |
| Upper Schwark Mine | Mine | 972 | Sanders | 47 33 08 N | 115 30 39 W |
| Upper Second Thought Ski Trail | Trail | 1810 | Missoula | 47 01 25 N | 113 59 50 W |
| Upper Sevenmile Creek | Stream | | Dawson | 47 05 24 N | 104 45 14 W |
| Upper Seymour Lake | Lake | 2521 | Deer Lodge | 46 02 12 N | 113 16 12 W |
| Upper Shonkin Cemetery | Cemetery | 1317 | Chouteau | 47 31 18 N | 110 34 37 W |
| Upper Snow Creek Mine | Mine | 2146 | Cascade | 46 56 60 N | 110 42 07 W |
| Upper Snyder Lake | Lake | 1700 | Flathead | 48 37 50 N | 113 47 41 W |
| Upper South Heidelberg Mine | Mine | 1315 | Sanders | 48 03 08 N | 115 37 41 W |
| Upper Spang Creek | Stream | | Rosebud | 45 32 06 N | 106 44 33 W |
| Upper Spartan Ski Trail | Trail | 1810 | Missoula | 47 01 25 N | 113 59 50 W |
| Upper Spear Ditch | Canal | 1182 | Carbon | 45 04 55 N | 107 22 13 W |
| Upper Spring Creek School (historical) | School | 1527 | Stillwater | 45 33 01 N | 109 42 17 W |
| Upper Stemwinder Mine | Mine | 2707 | Park | 46 02 30 N | 110 18 03 W |
| Upper Stillwater Campground | Locale | 974 | Flathead | 48 36 12 N | 114 39 23 W |
| Upper Stillwater Lake | Lake | 973 | Flathead | 48 35 13 N | 114 38 06 W |
| Upper Sunlight Ski Trail | Trail | 2365 | Madison | 45 16 51 N | 111 24 24 W |
| Upper Sunrise Bowl Ski Trail | Trail | 1810 | Missoula | 47 01 25 N | 113 59 50 W |
| Upper Sureshot Lake | Lake | 2226 | Madison | 45 32 53 N | 111 54 46 W |
| Upper Sweeney Mine | Mine | 2636 | Beaverhead | 44 43 54 N | 113 11 28 W |
| Upper Sweet Grass Canal | Canal | 1429 | Sweet Grass | 46 02 33 N | 109 52 43 W |
| Upper Taylor Dam | Dam | 1563 | Powell | 46 24 30 N | 112 50 15 W |
| Upper Taylor Reservoir | Reservoir | 1552 | Powell | 46 24 32 N | 112 50 11 W |
| Upper Tepee Basin | Basin | 2649 | Gallatin | 44 54 16 N | 111 10 31 W |
| Upper Thompson Lake | Lake | 1016 | Lincoln | 48 03 11 N | 115 06 52 W |
| Upper Triantler Mine | Mine | 1206 | Missoula | 46 46 29 N | 114 21 35 W |
| Upper Turnbull Drop | Canal | 1295 | Teton | 47 36 19 N | 112 05 51 W |
| Upper Twin Creek | Stream | | Lewis and Clark | 47 17 06 N | 112 40 41 W |
| Upper Twin Lake | Reservoir | 1995 | Ravalli | 46 09 42 N | 114 29 57 W |
| Upper Twin Lake Dam | Dam | 2197 | Missoula | 47 00 36 N | 113 55 09 W |
| Upper Twin Lakes Dam | Dam | 1995 | Ravalli | 46 09 42 N | 114 29 57 W |
| Upper Two Calf Island | Island | 704 | Phillips | 47 39 23 N | 108 46 58 W |
| Upper Two Medicine Lake | Lake | 1647 | Glacier | 48 27 50 N | 113 27 43 W |
| Upper Two Medicine Trail | Trail | 1630 | Glacier | 48 28 15 N | 113 26 04 W |
| Upper Warm Springs Picnic Area | Locale | 1917 | Deer Lodge | 46 12 10 N | 113 10 18 W |
| Upper Waterton Lake | Lake | 1276 | Glacier | 49 03 00 N | 113 54 03 W |
| Upper West Eureka Mine | Mine | 2054 | Cascade | 46 57 03 N | 110 42 48 W |
| Upper West Twin Creek Mine | Mine | 1475 | Mineral | 47 25 30 N | 115 21 44 W |
| Upper Whitebird School (historical) | School | 1331 | Stillwater | 45 29 12 N | 109 18 40 W |
| Upper Whitefish Campground | Locale | 1351 | Flathead | 48 41 06 N | 114 34 31 W |
| Upper Whitefish Lake | Lake | 1349 | Flathead | 48 41 12 N | 114 34 45 W |
| Upper Whitetail Park | Flat | 2213 | Jefferson | 46 04 49 N | 112 17 25 W |
| Upper Whitetail Park Trail | Trail | 1961 | Jefferson | 46 02 11 N | 112 13 43 W |
| Upper Wild Acres Ski Trail | Trail | 1816 | Lewis and Clark | 46 45 12 N | 112 18 50 W |
| Upper Willow Creek | Stream | | Granite | 46 19 54 N | 113 32 33 W |
| Upper Windsor Ditch | Canal | 1342 | Park | 45 43 43 N | 110 22 19 W |
| Upper Zee Ski Trail | Trail | 1816 | Lewis and Clark | 46 45 12 N | 112 18 50 W |
| Upsata Lake | Lake | 1261 | Powell | 47 04 41 N | 113 13 19 W |
| Upsata Lake Fishing Access Site | Locale | 1267 | Powell | 47 04 24 N | 113 13 52 W |
| Upsidedown Creek | Stream | | Park | 45 17 14 N | 110 14 28 W |
| Upsilon Dam | Dam | 1228 | Glacier | 48 53 06 N | 112 19 57 W |
| Ural (historical) | Locale | 750 | Lincoln | 48 36 35 N | 115 15 16 W |
| Ural (historical) | Populated Place | 750 | Lincoln | 48 36 35 N | 115 15 16 W |
| Ural Creek | Stream | | Lincoln | 48 36 31 N | 115 15 33 W |
| Ural Post Office (historical) | Post Office | 750 | Lincoln | 48 36 35 N | 115 15 16 W |
| Urbach School (historical) | School | 1447 | Park | 45 40 28 N | 110 27 06 W |
| Urback Place | Populated Place | 1447 | Park | 45 40 28 N | 110 27 06 W |
| Ursuline Academy | School | 1048 | Cascade | 47 30 16 N | 111 16 01 W |
| Ursus Hill | Summit | 2124 | Lewis and Clark | 47 22 05 N | 113 01 21 W |
| Urvi Creek | Stream | | Meagher | 46 56 53 N | 111 00 26 W |
| Urvi Gulch | Valley | | Cascade | 47 02 32 N | 110 58 05 W |
| US Number 1 Dam | Dam | 751 | McCone | 47 48 48 N | 106 06 26 W |
| US Number 13 Dam | Dam | 923 | Rosebud | 46 46 48 N | 107 02 44 W |