Feature Name | Class | Elev. meters | County | Latitude DMS | Longitude DMS |
| Trident Bridge | Bridge | 1232 | Gallatin | 45 56 15 N | 111 29 28 W |
| Troy Bridge | Bridge | 566 | Lincoln | 48 28 12 N | 115 53 14 W |
| Truly Bridge | Bridge | 1020 | Cascade | 47 21 25 N | 111 26 26 W |
| Tule Creek Bridge | Bridge | 645 | Roosevelt | 48 10 58 N | 105 29 45 W |
| Twelve Mile Creek Bridge | Bridge | 935 | Mineral | 47 22 02 N | 115 15 53 W |
| Twomile Bridge | Bridge | 1597 | Sweet Grass | 45 29 15 N | 110 13 01 W |
| Ulm Bridge | Bridge | 1014 | Cascade | 47 25 50 N | 111 30 10 W |
| Varney Bridge | Bridge | 1569 | Madison | 45 13 58 N | 111 45 05 W |
| Victor Bridge | Bridge | 1023 | Ravalli | 46 24 53 N | 114 07 35 W |
| Vogues Bridge | Bridge | 1248 | Sweet Grass | 45 47 23 N | 110 03 57 W |
| Warm Springs Creek Bridge | Bridge | 1468 | Deer Lodge | 46 10 50 N | 112 47 11 W |
| Weast Main Canal Bridge | Bridge | 1628 | Carbon | 45 20 10 N | 109 29 27 W |
| Wegner Creek Bridge | Bridge | 1056 | Lewis and Clark | 47 04 35 N | 111 57 18 W |
| West Poplar River Bridge | Bridge | 593 | Roosevelt | 48 06 47 N | 105 12 53 W |
| West Side Canal Bridge | Bridge | 1560 | Beaverhead | 45 14 10 N | 112 38 23 W |
| Whitaker Bridge | Bridge | 1069 | Missoula | 46 56 34 N | 113 36 07 W |
| Whitefish River Bridge | Bridge | 891 | Flathead | 48 15 23 N | 114 17 13 W |
| Williams Bridge | Bridge | 1541 | Gallatin | 45 32 25 N | 111 14 05 W |
| Wills Ditch Bridge | Bridge | 1218 | Carbon | 45 00 50 N | 109 03 44 W |
| Windlass Bridge | Bridge | 1445 | Granite | 46 21 26 N | 113 37 35 W |
| Winifred Bridge | Bridge | 734 | Fergus | 47 44 17 N | 109 37 26 W |
| Wisherd Bridge | Bridge | 1021 | Missoula | 46 53 35 N | 113 46 34 W |
| Wolf Creek Bridge | Bridge | 1093 | Lewis and Clark | 47 00 23 N | 112 04 48 W |
| Woodside Bridge | Bridge | 1055 | Ravalli | 46 18 45 N | 114 08 44 W |
| Woody Island Coulee Bridge | Bridge | 946 | Blaine | 48 54 42 N | 108 42 53 W |
| Yellowstone River Bridge | Bridge | 1592 | Park | 45 01 56 N | 110 42 20 W |
| Yellowstone River Bridge | Bridge | 647 | Prairie | 46 51 20 N | 105 06 59 W |
| Aber Hall | Building | 981 | Missoula | 46 51 44 N | 113 58 56 W |
| Absarokee Fire Department | Building | 1231 | Stillwater | 45 31 14 N | 109 26 35 W |
| Agricultural Museum and Center of Montana | Building | 804 | Chouteau | 47 49 30 N | 110 39 59 W |
| Alberton Branch Library | Building | 931 | Mineral | 47 00 06 N | 114 28 24 W |
| Albertonis Montana Wildlife Museum | Building | 941 | Flathead | 48 22 21 N | 114 10 53 W |
| Alder Gulch Short Line Steam Railroad Museum | Building | 1706 | Madison | 45 18 25 N | 111 58 03 W |
| Alder Rest Home | Building | 1569 | Madison | 45 18 30 N | 112 06 33 W |
| American Computer Museum | Building | 1470 | Gallatin | 45 40 43 N | 111 02 27 W |
| Anaconda - Deer Lodge County Fire Department | Building | 1613 | Deer Lodge | 46 07 53 N | 112 57 28 W |
| Anaconda - Deer Lodge County Police Department | Building | 1632 | Deer Lodge | 46 07 23 N | 112 57 19 W |
| Anaconda Visitors Center | Building | 1606 | Deer Lodge | 46 07 45 N | 112 56 59 W |
| Animal Resource Center | Building | 1495 | Gallatin | 45 40 04 N | 111 03 03 W |
| Armory - Gymnasium | Building | 784 | Hill | 48 32 27 N | 109 41 18 W |
| Art Annex | Building | 980 | Missoula | 46 51 48 N | 113 58 58 W |
| Arthur J M Johnson Hall | Building | 1498 | Gallatin | 45 39 58 N | 111 02 54 W |
| Arts Chateau | Building | 1754 | Silver Bow | 46 00 48 N | 112 32 32 W |
| Atkinson Quadrangle | Building | 1490 | Gallatin | 45 40 11 N | 111 02 46 W |
| Augusta City Fire Hall | Building | 1240 | Lewis and Clark | 47 29 34 N | 112 23 32 W |
| Augusta Community Library | Building | 1240 | Lewis and Clark | 47 29 34 N | 112 23 32 W |
| Auto Repair Shop | Building | 1502 | Gallatin | 45 39 48 N | 111 02 40 W |
| Automotive Diagnostic Laboratory | Building | 784 | Hill | 48 32 27 N | 109 41 08 W |
| Automotive Mechanics Building | Building | 776 | Hill | 48 32 29 N | 109 41 05 W |
| Badrock Fire Department | Building | 936 | Flathead | 48 20 40 N | 114 09 38 W |
| Bainville Public Library | Building | 610 | Roosevelt | 48 08 21 N | 104 13 32 W |
| Baker Fire Department | Building | 905 | Fallon | 46 21 38 N | 104 16 35 W |
| Baker Police Department | Building | 905 | Fallon | 46 21 38 N | 104 16 35 W |
| Bankas Shell Museum | Building | 1073 | Pondera | 48 10 09 N | 111 56 51 W |
| Beaverhead County Courthouse | Building | 1554 | Beaverhead | 45 12 55 N | 112 38 03 W |
| Beaverhead County Museum | Building | 1555 | Beaverhead | 45 13 03 N | 112 38 20 W |
| Beaverhead County Sheriffs Department | Building | 1554 | Beaverhead | 45 12 55 N | 112 38 03 W |
| Belgrade Community Library | Building | 1358 | Gallatin | 45 46 40 N | 111 10 31 W |
| Belgrade Fire Department | Building | 1360 | Gallatin | 45 46 30 N | 111 10 27 W |
| Belgrade Police Department | Building | 1359 | Gallatin | 45 46 35 N | 111 10 33 W |
| Bell Tower Hall | Building | 972 | Carter | 45 40 60 N | 104 21 50 W |
| Belt Public Library | Building | 1070 | Cascade | 47 23 10 N | 110 55 32 W |
| Bicentennial Library of Colstrip | Building | 985 | Rosebud | 45 52 54 N | 106 37 34 W |
| Big Arm Fire Station | Building | 903 | Lake | 47 47 52 N | 114 17 43 W |
| Big Hole National Battlefield Visitor Center | Building | 1918 | Beaverhead | 45 38 30 N | 113 38 33 W |
| Big Horn County Courthouse | Building | 886 | Big Horn | 45 43 54 N | 107 36 30 W |
| Big Horn County Historical Museum | Building | 882 | Big Horn | 45 44 17 N | 107 35 32 W |
| Big Horn County Library | Building | 885 | Big Horn | 45 43 58 N | 107 36 26 W |
| Big Horn County Sheriffs Office | Building | 886 | Big Horn | 45 43 54 N | 107 36 30 W |
| Big Prairie Work Center | Building | 1417 | Powell | 47 30 28 N | 113 14 12 W |
| Big Sandy Branch Library | Building | 823 | Chouteau | 48 10 43 N | 110 06 44 W |
| Big Sandy Police Department | Building | 823 | Chouteau | 48 10 43 N | 110 06 44 W |
| Big Sky Dorm | Building | 724 | Custer | 46 24 21 N | 105 49 35 W |
| Big Timber Fire Hall | Building | 1248 | Sweet Grass | 45 50 05 N | 109 57 10 W |
| Big Timber Police Department | Building | 1249 | Sweet Grass | 45 50 01 N | 109 57 08 W |
| Bigfork Branch Library | Building | 908 | Flathead | 48 03 48 N | 114 04 21 W |
| Bigfork Fire Department | Building | 910 | Flathead | 48 03 55 N | 114 04 52 W |
| Bigfork Fire Department - Echo Station | Building | 936 | Flathead | 48 07 16 N | 114 01 31 W |
| Bissell Grange Hall | Building | 929 | Flathead | 48 21 60 N | 114 27 37 W |
| Bitterroot Public Library | Building | 1089 | Ravalli | 46 14 46 N | 114 09 31 W |
| Blackfeet Boarding Dormitory | Building | 1305 | Glacier | 48 37 48 N | 112 58 41 W |
| Blaine County Courthouse | Building | 742 | Blaine | 48 35 28 N | 109 13 45 W |
| Blaine County Library | Building | 739 | Blaine | 48 35 31 N | 109 13 56 W |
| Blaine County Museum | Building | 738 | Blaine | 48 35 27 N | 109 13 54 W |
| Blaine County Sheriffs Office | Building | 742 | Blaine | 48 35 28 N | 109 13 45 W |
| Blankenship Fire Department | Building | 976 | Flathead | 48 28 30 N | 114 06 51 W |
| Bobcat Tennis Center | Building | 1502 | Gallatin | 45 39 48 N | 111 02 55 W |
| Boiler Plant | Building | 1256 | Lewis and Clark | 46 35 09 N | 112 01 01 W |
| Borromeo Hall | Building | 1229 | Lewis and Clark | 46 35 60 N | 112 02 21 W |
| Botany Building | Building | 982 | Missoula | 46 51 40 N | 113 59 02 W |
| Boulder Community Library | Building | 1495 | Jefferson | 46 14 06 N | 112 07 11 W |
| Boulder Fire Department | Building | 1496 | Jefferson | 46 14 12 N | 112 07 15 W |
| Bozeman Fire Department | Building | 1466 | Gallatin | 45 40 48 N | 111 01 54 W |
| Bozeman Fire Station Number Two | Building | 1468 | Gallatin | 45 40 47 N | 111 02 19 W |
| Bozeman Public Library | Building | 1464 | Gallatin | 45 40 55 N | 111 02 27 W |
| Brantly Hall | Building | 979 | Missoula | 46 51 43 N | 113 59 16 W |
| Bridger Fire Department | Building | 1117 | Carbon | 45 17 45 N | 108 54 50 W |
| Bridger Public Library | Building | 1122 | Carbon | 45 17 46 N | 108 54 58 W |
| Broadwater County Courthouse | Building | 1172 | Broadwater | 46 19 18 N | 111 30 56 W |
| Broadwater County Library | Building | 1172 | Broadwater | 46 19 18 N | 111 30 56 W |
| Broadwater County Museum | Building | 1172 | Broadwater | 46 19 20 N | 111 30 57 W |
| Broadwater County Sheriffs Office | Building | 1172 | Broadwater | 46 19 18 N | 111 30 56 W |
| Broadwater School and Community Library | Building | 1172 | Broadwater | 46 19 20 N | 111 31 11 W |
| Brockmann Center | Building | 782 | Hill | 48 32 27 N | 109 41 16 W |
| Browning Branch Library | Building | 1334 | Glacier | 48 33 25 N | 113 00 48 W |
| Browning Fire Department | Building | 1331 | Glacier | 48 33 47 N | 113 00 43 W |
| Browning Police Department | Building | 1334 | Glacier | 48 33 25 N | 113 00 48 W |
| Brueberg Hall | Building | 662 | Dawson | 47 05 07 N | 104 43 23 W |
| Business Administration Building | Building | 980 | Missoula | 46 51 45 N | 113 59 06 W |
| Business and Social Science Building | Building | 916 | Flathead | 48 13 40 N | 114 19 33 W |