Feature Name | Class | Elev. meters | County | Latitude DMS | Longitude DMS |
| Terrace Lake | Lake | 2010 | Lake | 47 31 31 N | 113 56 14 W |
| Terrace Lake | Lake | 1760 | Sanders | 47 46 12 N | 115 15 27 W |
| Terrace Lakes | Lake | 2091 | Missoula | 47 30 22 N | 113 33 28 W |
| Terrace Post Office (historical) | Post Office | 715 | McCone | 47 50 30 N | 105 27 22 W |
| Terrell Creek | Stream | | Carter | 46 00 37 N | 104 26 25 W |
| Terrells Coulee | Valley | | Phillips | 48 32 00 N | 107 17 19 W |
| Terrett Butte | Summit | 1076 | Powder River | 45 14 53 N | 105 37 21 W |
| Terry | Locale | 685 | Prairie | 46 47 38 N | 105 18 48 W |
| Terry | Populated Place | 686 | Prairie | 46 47 35 N | 105 18 44 W |
| Terry Airport | Airport | 694 | Prairie | 46 46 45 N | 105 18 18 W |
| Terry Coulee | Valley | | McCone | 47 23 22 N | 106 09 37 W |
| Terry Dam | Dam | 839 | Blaine | 48 37 24 N | 108 36 09 W |
| Terry Fire Department | Building | 687 | Prairie | 46 47 33 N | 105 18 50 W |
| Terry High School | School | 685 | Prairie | 46 47 29 N | 105 18 27 W |
| Terry Main Canal | Canal | 688 | Prairie | 46 46 44 N | 105 16 45 W |
| Terry Police Department | Building | 687 | Prairie | 46 47 33 N | 105 18 50 W |
| Terry Post Office | Post Office | 686 | Prairie | 46 47 29 N | 105 18 51 W |
| Terry RV Oasis | Locale | 688 | Prairie | 46 47 19 N | 105 19 08 W |
| Terry Scenic View | Locale | 853 | Prairie | 46 49 50 N | 105 23 27 W |
| Terry Sewage Ponds Dam | Dam | 670 | Prairie | 46 48 06 N | 105 17 56 W |
| Terry Sheep Camp | Locale | 1582 | Park | 45 48 51 N | 110 38 58 W |
| Terryann School (historical) | School | 1348 | Pondera | 48 10 03 N | 112 38 36 W |
| Terrys Drive In (historical) | Locale | 640 | Valley | 48 13 48 N | 106 40 01 W |
| Terrys Supply Camp (historical) | Military (Historical) | 668 | Prairie | 46 44 26 N | 105 26 03 W |
| Tesky Creek | Stream | | Jefferson | 46 09 53 N | 112 12 50 W |
| Teton Bench Post Office (historical) | Post Office | 936 | Chouteau | 47 54 55 N | 110 57 23 W |
| Teton Butte | Summit | 759 | McCone | 47 51 05 N | 106 05 17 W |
| Teton Buttes | Summit | 1357 | Teton | 47 48 45 N | 112 21 52 W |
| Teton County | Civil | 1252 | Teton | 47 48 00 N | 112 16 03 W |
| Teton County Courthouse | Building | 1163 | Teton | 47 48 39 N | 112 10 55 W |
| Teton County Sheriffs Office | Building | 1163 | Teton | 47 48 39 N | 112 10 55 W |
| Teton Ditch | Canal | 1171 | Teton | 47 51 20 N | 112 09 02 W |
| Teton Gulch | Valley | | Missoula | 46 43 39 N | 113 45 49 W |
| Teton Medical Center | Hospital | 1166 | Teton | 47 48 50 N | 112 11 33 W |
| Teton Medical Center Nursing Home | Hospital | 1166 | Teton | 47 48 50 N | 112 11 33 W |
| Teton Medical Office | Hospital | 1164 | Teton | 47 48 46 N | 112 10 58 W |
| Teton Nursing Home | Hospital | 1164 | Teton | 47 48 42 N | 112 11 00 W |
| Teton Pass | Gap | 2218 | Flathead | 47 58 36 N | 112 53 33 W |
| Teton Pass Winter Sports Area | Locale | 2111 | Teton | 47 55 41 N | 112 48 55 W |
| Teton Peak | Summit | 2560 | Teton | 47 53 18 N | 112 50 22 W |
| Teton Post Office (historical) | Post Office | 876 | Chouteau | 47 52 28 N | 110 51 33 W |
| Teton Post Office (historical) | Post Office | 803 | Chouteau | 47 53 29 N | 110 34 23 W |
| Teton Ridge | Ridge | 1243 | Teton | 47 48 11 N | 111 42 50 W |
| Teton River | Stream | | Chouteau | 47 55 55 N | 110 30 32 W |
| Teton Station | Locale | 803 | Chouteau | 47 53 29 N | 110 34 23 W |
| Teton-Spring Creek Bird Reserve | Park | 1190 | Teton | 47 51 02 N | 112 12 50 W |
| Tetonview School (historical) | School | 1343 | Teton | 47 53 04 N | 112 27 36 W |
| Tetrault Lake | Lake | 766 | Lincoln | 48 56 46 N | 115 06 58 W |
| Tetrault Lake Campground | Locale | 782 | Lincoln | 48 56 45 N | 115 07 14 W |
| Tetrault Lake Fishing Access Site | Locale | 766 | Lincoln | 48 56 52 N | 115 06 43 W |
| Tetrault Lake Recreation Site | Locale | 799 | Lincoln | 48 56 42 N | 115 06 22 W |
| Tevis Creek | Stream | | Missoula | 46 45 17 N | 114 14 50 W |
| Tewfel Gulch | Valley | | Powell | 46 37 48 N | 112 53 23 W |
| Tewfel Gulch | Valley | | Powell | 46 37 49 N | 112 53 23 W |
| Tex Creek | Stream | | Beaverhead | 44 34 04 N | 112 51 32 W |
| Tex Oh Leo Dam | Dam | 1120 | Hill | 48 45 36 N | 110 58 57 W |
| Texas Bar (historical) | Locale | 912 | Mineral | 47 02 30 N | 114 46 03 W |
| Texas Mine | Mine | 1684 | Mineral | 47 25 60 N | 115 19 27 W |
| Texas Mine | Mine | 1647 | Mineral | 47 25 60 N | 115 19 24 W |
| Texas Pacific Camp | Locale | 1053 | Toole | 48 48 42 N | 111 52 09 W |
| Tezaks-Colterville Spur Airport | Airport | 1509 | Madison | 45 23 59 N | 112 10 02 W |
| Thackery Ranch | Locale | 768 | Hill | 48 35 29 N | 109 51 54 W |
| Thain Creek | Stream | | Chouteau | 47 28 31 N | 110 35 10 W |
| Thain Creek Campground | Locale | 1387 | Chouteau | 47 28 32 N | 110 35 03 W |
| Thale Post Office (historical) | Post Office | 1854 | Meagher | 46 45 41 N | 110 44 26 W |
| Than Wilkerson Ridge | Ridge | 1934 | Ravalli | 45 37 10 N | 114 19 48 W |
| Thars Gold in Them Thar Hills Historical Marker | Park | 1219 | Broadwater | 46 25 33 N | 111 36 35 W |
| Thav Dam | Dam | 1153 | Teton | 47 46 30 N | 111 44 27 W |
| Thayer Cabin | Locale | 2283 | Beaverhead | 45 11 37 N | 113 16 50 W |
| Thayer Creek | Stream | | Beaverhead | 45 11 47 N | 113 16 55 W |
| The Angels Bathing Pool | Lake | 2061 | Missoula | 47 18 09 N | 113 48 55 W |
| The Arch | Arch | 1684 | Judith Basin | 47 08 59 N | 110 33 55 W |
| The Badlands | Area | 1081 | Judith Basin | 47 21 53 N | 110 13 44 W |
| The Bar | Ridge | 2421 | Madison | 45 43 18 N | 112 25 31 W |
| The Bars | Bar | 1467 | Teton | 47 38 35 N | 112 51 59 W |
| The Basin | Basin | 2260 | Beaverhead | 44 49 00 N | 112 38 10 W |
| The Basin | Basin | 1447 | Glacier | 48 54 04 N | 113 06 29 W |
| The Basin | Basin | 1806 | Meagher | 46 16 36 N | 110 36 26 W |
| The Basin | Basin | 1510 | Powell | 47 24 32 N | 113 06 07 W |
| The Bear | Pillar | 2012 | Park | 45 16 39 N | 111 00 13 W |
| The Beaver Slide | Basin | 1498 | Big Horn | 45 02 05 N | 107 40 26 W |
| The Bench | Bench | 1371 | Madison | 45 42 36 N | 112 10 58 W |
| The Big Eddy | Rapids | 842 | Cascade | 47 36 35 N | 111 02 53 W |
| The Big Hill | Summit | 969 | Rosebud | 46 49 05 N | 106 39 35 W |
| The Big Open Ski Trail | Trail | 1816 | Lewis and Clark | 46 45 12 N | 112 18 50 W |
| The Big Sag | Basin | 884 | Fergus | 47 39 02 N | 109 45 26 W |
| The Big Sag | Basin | 723 | Phillips | 47 56 09 N | 107 46 46 W |
| The Big Slide | Summit | 1555 | Carbon | 45 16 20 N | 109 05 32 W |
| The Blowout | Basin | 2067 | Gallatin | 45 03 54 N | 111 12 41 W |
| The Blue Slide | Cliff | 754 | Sanders | 47 42 52 N | 115 25 14 W |
| The Bowl Ski Trail | Trail | 2365 | Madison | 45 16 51 N | 111 24 24 W |
| The Breaks Coulee | Valley | | Powder River | 45 48 42 N | 106 04 07 W |
| The Buffalo Pasture | Flat | 1793 | Big Horn | 45 11 55 N | 107 59 01 W |
| The Bullwhacker Statue | Park | 1245 | Lewis and Clark | 46 35 17 N | 112 02 23 W |
| The Buttes | Summit | 1318 | Broadwater | 46 06 40 N | 111 29 27 W |
| The Canyon | Valley | | Chouteau | 47 48 44 N | 110 39 55 W |
| The Castle | Building | 1556 | Meagher | 46 32 47 N | 110 53 55 W |
| The Castle | Pillar | 1555 | Meagher | 46 33 07 N | 110 53 57 W |
| The Chimneys | Pillar | 915 | Phillips | 47 51 56 N | 107 28 48 W |
| The Church of Jesus Christ of Latter Day Saints | Church | 1555 | Beaverhead | 45 12 59 N | 112 38 15 W |
| The Church of Jesus Christ of Latter Day Saints | Church | 1907 | Beaverhead | 44 38 13 N | 112 35 31 W |
| The Church of Jesus Christ of Latter Day Saints | Church | 885 | Big Horn | 45 44 15 N | 107 36 37 W |
| The Church of Jesus Christ of Latter Day Saints | Church | 721 | Blaine | 48 31 60 N | 108 47 03 W |
| The Church of Jesus Christ of Latter Day Saints | Church | 742 | Blaine | 48 35 31 N | 109 13 45 W |
| The Church of Jesus Christ of Latter Day Saints | Church | 1171 | Broadwater | 46 19 21 N | 111 30 30 W |
| The Church of Jesus Christ of Latter Day Saints | Church | 1194 | Broadwater | 46 10 22 N | 111 26 28 W |
| The Church of Jesus Christ of Latter Day Saints | Church | 1728 | Carbon | 45 10 20 N | 109 15 23 W |
| The Church of Jesus Christ of Latter Day Saints | Church | 1177 | Carbon | 45 08 31 N | 109 00 20 W |
| The Church of Jesus Christ of Latter Day Saints | Church | 1043 | Cascade | 47 29 20 N | 111 17 23 W |
| The Church of Jesus Christ of Latter Day Saints | Church | 1028 | Cascade | 47 31 10 N | 111 19 34 W |