Feature Name | Class | Elev. meters | County | Latitude DMS | Longitude DMS |
| Dandy Mine | Mine | 1641 | Carbon | 45 03 60 N | 108 25 02 W |
| Dandy Mine | Mine | 1778 | Granite | 46 48 60 N | 113 17 54 W |
| Dandy Mine | Mine | 1652 | Granite | 46 49 29 N | 113 18 05 W |
| Dane Coulee | Valley | | McCone | 47 59 37 N | 106 15 41 W |
| Dane Valley Post Office (historical) | Post Office | 652 | Roosevelt | 48 14 10 N | 104 25 52 W |
| Dane Valley School (historical) | School | 678 | Roosevelt | 48 13 50 N | 104 27 20 W |
| Danelson Reservoir Dam | Dam | 768 | Daniels | 48 41 12 N | 105 17 02 W |
| Danforth Chapel | Building | 1496 | Gallatin | 45 40 05 N | 111 02 50 W |
| Danial Downs Number 2 Dam | Dam | 800 | Dawson | 47 11 00 N | 105 08 14 W |
| Danial Downs Number 4 Dam | Dam | 822 | Dawson | 47 10 00 N | 105 08 14 W |
| Daniel Number 1 Dam | Dam | 821 | Hill | 48 28 06 N | 109 57 27 W |
| Daniel Number 2 Dam | Dam | 816 | Hill | 48 28 30 N | 109 56 39 W |
| Daniel Number 3 Dam | Dam | 788 | Hill | 48 28 30 N | 109 53 39 W |
| Daniel Stanton | Mine | 1747 | Lewis and Clark | 46 28 02 N | 112 15 13 W |
| Daniels / Sheridan Special Education Cooperative School | School | 626 | Sheridan | 48 46 43 N | 104 33 18 W |
| Daniels County | Civil | 797 | Daniels | 48 47 00 N | 105 32 02 W |
| Daniels County Courthouse | Building | 755 | Daniels | 48 47 27 N | 105 25 16 W |
| Daniels County Fairgrounds | Locale | 746 | Daniels | 48 47 39 N | 105 25 43 W |
| Daniels County Farmers Elevator (historical) | Locale | 847 | Daniels | 48 48 45 N | 105 17 05 W |
| Daniels County Farmers Elevator (historical) | Locale | 752 | Daniels | 48 47 36 N | 105 25 10 W |
| Daniels County Library | Building | 756 | Daniels | 48 47 28 N | 105 25 10 W |
| Daniels County Museum | Building | 742 | Daniels | 48 47 20 N | 105 25 57 W |
| Daniels County Sheriffs Department | Building | 755 | Daniels | 48 47 27 N | 105 25 16 W |
| Daniels County Vision Clinic | Hospital | 750 | Daniels | 48 47 35 N | 105 25 15 W |
| Daniels Cow Camp | Locale | 1682 | Broadwater | 46 13 19 N | 111 10 11 W |
| Daniels Creek | Stream | | Meagher | 46 46 19 N | 110 51 02 W |
| Daniels Memorial Hospital | Hospital | 763 | Daniels | 48 47 18 N | 105 25 07 W |
| Daniels Memorial Medical Clinic | Hospital | 763 | Daniels | 48 47 18 N | 105 25 07 W |
| Daniels Memorial Nursing Home | Hospital | 763 | Daniels | 48 47 18 N | 105 25 07 W |
| Daniels Point | Cape | 700 | McCone | 47 38 32 N | 106 14 47 W |
| Daniels Post Office (historical) | Post Office | 717 | Daniels | 48 46 23 N | 105 27 52 W |
| Daniels Post Office (historical) | Post Office | 1847 | Powell | 46 17 32 N | 113 00 55 W |
| Daniels Ranch | Locale | 1821 | Beaverhead | 45 42 33 N | 113 25 30 W |
| Daniels Ranch | Locale | 1253 | Broadwater | 46 21 13 N | 111 24 47 W |
| Daniels Ranch | Locale | 1105 | Rosebud | 45 17 30 N | 106 22 43 W |
| Danielson Ranch | Locale | 1048 | Flathead | 48 09 52 N | 114 28 27 W |
| Danielsville | Populated Place | 1847 | Powell | 46 17 32 N | 113 00 55 W |
| Danny O'Brien Gulch | Valley | | Missoula | 46 54 21 N | 113 57 15 W |
| Danny on Memorial National Recreation Trail | Trail | 1723 | Flathead | 48 29 30 N | 114 20 05 W |
| Danton (historical) | Locale | 658 | Prairie | 46 51 20 N | 105 04 46 W |
| Danton Post Office (historical) | Post Office | 658 | Prairie | 46 51 20 N | 105 04 46 W |
| Danvers | Locale | 1085 | Fergus | 47 13 31 N | 109 43 02 W |
| Danvers | Populated Place | 1085 | Fergus | 47 13 31 N | 109 43 02 W |
| Danvers Cemetery | Cemetery | 1083 | Fergus | 47 13 45 N | 109 43 06 W |
| Danvers Post Office (historical) | Post Office | 1085 | Fergus | 47 13 31 N | 109 43 02 W |
| Darby | Locale | 1184 | Ravalli | 46 01 18 N | 114 10 23 W |
| Darby | Populated Place | 1184 | Ravalli | 46 01 22 N | 114 10 41 W |
| Darby Buttes | Summit | 926 | Garfield | 47 09 39 N | 106 54 00 W |
| Darby Elementary School | School | 1186 | Ravalli | 46 01 39 N | 114 10 41 W |
| Darby High School | School | 1186 | Ravalli | 46 01 39 N | 114 10 41 W |
| Darby Landfill | Locale | 1243 | Ravalli | 45 59 12 N | 114 10 32 W |
| Darby Park | Park | 1184 | Ravalli | 46 01 22 N | 114 10 41 W |
| Darby Post Office | Post Office | 1184 | Ravalli | 46 01 22 N | 114 10 41 W |
| Darby Public Library | Building | 1184 | Ravalli | 46 01 22 N | 114 10 41 W |
| Dark Butte | Summit | 940 | Chouteau | 47 46 37 N | 109 55 59 W |
| Dark Canyon | Valley | | Judith Basin | 46 45 37 N | 109 59 46 W |
| Dark Canyon | Valley | | Stillwater | 45 28 55 N | 109 41 07 W |
| Dark Creek | Stream | | Lincoln | 48 41 19 N | 115 34 33 W |
| Dark Forest Ski Trail | Trail | 1816 | Lewis and Clark | 46 45 12 N | 112 18 50 W |
| Dark Gulch | Valley | | Lewis and Clark | 47 03 26 N | 112 17 48 W |
| Dark Hole | Channel | 2031 | Beaverhead | 45 31 44 N | 112 46 54 W |
| Dark Hollow | Valley | | Madison | 45 01 36 N | 112 03 40 W |
| Dark Hollow | Valley | | Madison | 45 07 39 N | 112 02 04 W |
| Darkhorse Creek | Stream | | Beaverhead | 45 10 48 N | 113 30 51 W |
| Darkhorse Lake | Lake | 2650 | Beaverhead | 45 09 46 N | 113 34 59 W |
| Darkhorse Mine | Mine | 1942 | Beaverhead | 45 29 60 N | 113 35 03 W |
| Darling Draw | Valley | | Powder River | 45 37 07 N | 106 02 27 W |
| Darling Draw Spring | Spring | 1198 | Powder River | 45 38 34 N | 106 01 55 W |
| Darling Post Office (historical) | Post Office | 1555 | Beaverhead | 45 32 45 N | 112 41 51 W |
| Darlington Brothers Ranch | Locale | 1283 | Gallatin | 45 47 06 N | 111 30 13 W |
| Darlington Ditch | Canal | 1251 | Gallatin | 45 51 50 N | 111 29 41 W |
| Darrel (historical) | Populated Place | 1211 | Fergus | 46 45 03 N | 108 42 36 W |
| Darrel Post Office (historical) | Post Office | 1211 | Fergus | 46 45 03 N | 108 42 36 W |
| Darroch Creek | Stream | | Park | 45 06 32 N | 110 36 02 W |
| Dart Creek | Stream | | Missoula | 47 32 11 N | 113 31 41 W |
| Dashers Spring | Spring | 938 | Valley | 48 46 18 N | 106 35 46 W |
| DASTE_CANAL___ Well | Well | 849 | Lake | 47 22 58 N | 114 11 49 W |
| Dato Dam | Dam | 1057 | Pondera | 48 14 18 N | 111 41 39 W |
| Daughter of the Sun Mountain | Summit | 2642 | Missoula | 47 20 41 N | 113 50 59 W |
| Dauphin Rapids | Rapids | 719 | Fergus | 47 44 36 N | 109 22 47 W |
| DAV Park | Park | 1452 | Cascade | 47 03 30 N | 110 48 03 W |
| Dave Gulch | Valley | | Powell | 46 32 53 N | 112 40 36 W |
| Dave Johnson Creek | Stream | | Gallatin | 44 48 54 N | 111 15 36 W |
| Davenport Coulee | Valley | | Hill | 48 36 41 N | 109 52 34 W |
| Davenport Draw | Valley | | Sanders | 47 23 14 N | 114 28 30 W |
| Daves Coulee | Valley | | Garfield | 47 00 60 N | 107 50 25 W |
| Daves Landing Seaplane Base | Airport | 731 | Sanders | 47 35 25 N | 115 20 18 W |
| Davey Butte | Summit | 2503 | Meagher | 46 12 10 N | 110 27 33 W |
| Davey Coulee | Valley | | Blaine | 48 34 23 N | 109 26 59 W |
| Davey Creek | Stream | | Madison | 45 14 16 N | 112 06 16 W |
| Davey Creek Mine | Mine | 1845 | Madison | 45 14 55 N | 112 04 09 W |
| Davey Pioneer Laboratory | Building | 776 | Hill | 48 32 29 N | 109 41 05 W |
| Davey School | School | 850 | Hill | 48 30 09 N | 109 32 34 W |
| Daveys Coulee | Valley | | Hill | 48 29 17 N | 109 28 55 W |
| David Creek | Stream | | Beaverhead | 45 31 60 N | 113 02 07 W |
| David Creek | Stream | | Big Horn | 45 36 09 N | 106 50 35 W |
| David DRUM Number 1 Dam | Dam | 765 | Phillips | 48 01 30 N | 108 00 26 W |
| David Drum Number 2 Dam | Dam | 998 | Phillips | 47 58 06 N | 108 58 57 W |
| David Drum Number 3 Dam | Dam | 763 | Phillips | 47 58 54 N | 107 52 56 W |
| David Drum Number 4 Dam | Dam | 755 | Phillips | 47 59 18 N | 107 58 56 W |
| David Horse Camp | Locale | 812 | Valley | 48 28 53 N | 106 48 01 W |
| David Thompson Bridge | Bridge | 802 | Lincoln | 48 21 57 N | 115 18 34 W |
| Davidell Post Office (historical) | Post Office | 854 | Rosebud | 46 33 42 N | 107 03 10 W |
| Davidson Coulee | Valley | | Blaine | 47 57 14 N | 109 02 51 W |
| Davidson Coulee | Valley | | Rosebud | 45 42 23 N | 106 40 23 W |
| Davidson Creek | Stream | | Powell | 46 29 21 N | 113 00 53 W |
| Davidson Creek | Stream | | Stillwater | 45 29 24 N | 109 32 25 W |
| Davidson Draw | Valley | | Big Horn | 45 10 29 N | 106 15 42 W |
| Davidson Post Office (historical) | Post Office | 1001 | Chouteau | 47 44 05 N | 110 27 03 W |
| Davidson Post Office (historical) | Post Office | 802 | Garfield | 47 35 12 N | 106 37 24 W |