Feature Name | Class | Elev. meters | County | Latitude DMS | Longitude DMS |
| Monota Post Office (historical) | Post Office | 613 | Sheridan | 48 37 42 N | 104 03 51 W |
| Monroe Creek | Stream | | Dawson | 46 56 48 N | 104 51 28 W |
| Monroe Creek | Stream | | Teton | 47 53 49 N | 112 57 04 W |
| Monroe Gulch | Valley | | Sanders | 47 36 54 N | 115 32 27 W |
| Monroe Island | Island | 635 | Dawson | 46 58 20 N | 104 47 22 W |
| Monroe Mine | Mine | 1636 | Toole | 48 56 03 N | 111 33 03 W |
| Monroe Reservoir | Reservoir | 1220 | Carbon | 45 06 48 N | 109 03 01 W |
| Monroe School (historical) | School | 700 | Sheridan | 48 42 03 N | 104 17 03 W |
| Monroe School (historical) | School | 1683 | Silver Bow | 46 00 15 N | 112 31 34 W |
| Monster Reservoir | Reservoir | 846 | Phillips | 47 43 44 N | 108 13 56 W |
| Mont Aqua Hot Spring | Locale | 1088 | Carbon | 45 30 26 N | 108 54 10 W |
| Monta School (historical) | School | 806 | Custer | 46 09 07 N | 105 34 32 W |
| Montague | Populated Place | 963 | Chouteau | 47 40 45 N | 110 27 15 W |
| Montague (historical) | Locale | 963 | Chouteau | 47 40 45 N | 110 27 15 W |
| Montague Butte | Summit | 955 | Custer | 46 24 25 N | 105 05 09 W |
| Montague Cemetery | Cemetery | 984 | Chouteau | 47 40 43 N | 110 27 58 W |
| Montague Post Office (historical) | Post Office | 963 | Chouteau | 47 40 45 N | 110 27 15 W |
| Montague School (historical) | School | 963 | Chouteau | 47 40 45 N | 110 27 15 W |
| Montana - Dakota Grain Company Elevator (historical) | Locale | 672 | Roosevelt | 48 14 37 N | 104 22 40 W |
| Montana and Dakota Elevator (historical) | Locale | 1061 | Fergus | 47 01 46 N | 108 48 15 W |
| Montana Boy Mine | Mine | 1605 | Madison | 45 31 13 N | 111 41 16 W |
| Montana Center for the Aged | Hospital | 1215 | Fergus | 47 03 23 N | 109 25 32 W |
| Montana Central Elevator (historical) | Locale | 587 | Richland | 47 42 38 N | 104 08 42 W |
| Montana Chemical Dependency Center | Hospital | 1694 | Silver Bow | 45 59 18 N | 112 29 07 W |
| Montana Childrens Center (historical) | School | 1412 | Madison | 45 32 40 N | 112 19 52 W |
| Montana City | Populated Place | 1237 | Jefferson | 46 32 16 N | 111 55 58 W |
| Montana City (historical) | Locale | 1008 | Sanders | 47 33 15 N | 115 37 24 W |
| Montana City Elementary School (historical) | School | 1245 | Jefferson | 46 32 21 N | 111 56 04 W |
| Montana City Post Office (historical) | Post Office | 1237 | Jefferson | 46 32 16 N | 111 55 58 W |
| Montana Creek | Stream | | Mineral | 46 47 59 N | 114 39 18 W |
| Montana Crossroads Historical Marker | Park | 931 | Chouteau | 47 58 30 N | 110 29 53 W |
| Montana Deaconess Medical Center Heliport | Airport | 1044 | Cascade | 47 29 29 N | 111 16 35 W |
| Montana Deaconess Skilled Nursing Center | Hospital | 1058 | Cascade | 47 29 25 N | 111 15 43 W |
| Montana Developmental Center | Hospital | 1494 | Jefferson | 46 14 10 N | 112 07 31 W |
| Montana Ditch | Canal | 1165 | Broadwater | 46 23 34 N | 111 28 12 W |
| Montana Elevator (historical) | Locale | 823 | Chouteau | 48 10 43 N | 110 06 44 W |
| Montana Elevator (historical) | Locale | 1315 | Fergus | 46 49 12 N | 109 49 31 W |
| Montana Elevator (historical) | Locale | 903 | Petroleum | 47 00 24 N | 108 21 04 W |
| Montana Elevator (historical) | Locale | 1303 | Teton | 48 04 25 N | 112 17 56 W |
| Montana Fish Wildlife and Parks Headquarters | Locale | 1481 | Gallatin | 45 40 22 N | 111 04 35 W |
| Montana Gulch | Valley | | Broadwater | 46 35 58 N | 111 24 59 W |
| Montana Gulch | Valley | | Madison | 45 34 26 N | 112 07 14 W |
| Montana Gulch | Valley | | Phillips | 47 53 49 N | 108 37 55 W |
| Montana Gulch Campground | Locale | 1217 | Phillips | 47 53 54 N | 108 37 58 W |
| Montana Gulch Mine | Mine | 2579 | Madison | 45 34 36 N | 112 07 33 W |
| Montana Hall | Building | 1496 | Gallatin | 45 40 03 N | 111 02 58 W |
| Montana Historical Society Library and Archives | Building | 1254 | Lewis and Clark | 46 35 11 N | 112 00 57 W |
| Montana Historical Society Museum | Building | 1254 | Lewis and Clark | 46 35 11 N | 112 00 57 W |
| Montana Industrial School (historical) | School | 1075 | Big Horn | 46 00 08 N | 107 40 20 W |
| Montana Law Enforcement Museum | Building | 1381 | Powell | 46 23 33 N | 112 44 10 W |
| Montana Law Enforcement Officers Memorial | Park | 1381 | Powell | 46 23 33 N | 112 44 10 W |
| Montana Mine | Mine | 971 | Sanders | 47 32 13 N | 115 31 48 W |
| Montana Morning Mine | Mine | 1001 | Lincoln | 48 25 08 N | 115 56 48 W |
| Montana Neck and Back Pain Clinic | Hospital | 1081 | Ravalli | 46 15 35 N | 114 09 23 W |
| Montana Number 10 Dam | Dam | 870 | Rosebud | 46 50 36 N | 107 43 20 W |
| Montana Number 13 Dam | Dam | 898 | Rosebud | 46 49 54 N | 107 21 50 W |
| Montana Number 14 Dam | Dam | 969 | Rosebud | 46 45 36 N | 107 29 20 W |
| Montana Number 17 Dam | Dam | 897 | Rosebud | 46 36 60 N | 107 20 08 W |
| Montana Number 18 Dam | Dam | 876 | Rosebud | 46 29 12 N | 107 15 14 W |
| Montana Number 19 Dam | Dam | 864 | Rosebud | 46 31 54 N | 107 12 08 W |
| Montana Number 21 Dam | Dam | 892 | Rosebud | 46 50 12 N | 106 28 14 W |
| Montana Number 26 Dam | Dam | 883 | Garfield | 46 53 12 N | 107 48 08 W |
| Montana Number 28 Dam | Dam | 1054 | Garfield | 46 57 36 N | 107 18 26 W |
| Montana Number 3 Dam | Dam | 884 | Rosebud | 46 42 06 N | 106 28 44 W |
| Montana Number 31 Dam | Dam | 897 | Musselshell | 46 40 24 N | 108 01 32 W |
| Montana Number 32 Dam | Dam | 935 | Musselshell | 46 35 42 N | 108 08 08 W |
| Montana Number 4 Dam | Dam | 905 | Rosebud | 46 34 54 N | 106 31 02 W |
| Montana Number 6 Dam | Dam | 870 | Rosebud | 46 23 54 N | 106 46 44 W |
| Montana Number 7 Dam | Dam | 792 | Rosebud | 46 18 60 N | 106 46 44 W |
| Montana Number 9 Dam | Dam | 831 | Rosebud | 46 13 36 N | 106 25 02 W |
| Montana Park | Park | 1017 | Cascade | 47 29 07 N | 111 19 40 W |
| Montana Power Dam | Dam | 2369 | Stillwater | 45 13 32 N | 109 45 33 W |
| Montana Premier Mine | Mine | 916 | Lincoln | 48 22 52 N | 115 53 31 W |
| Montana Premier Mine | Mine | 782 | Lincoln | 48 22 52 N | 115 52 49 W |
| Montana Prince Mine | Mine | 2169 | Ravalli | 46 00 50 N | 113 40 59 W |
| Montana Prince Mine | Mine | 2183 | Ravalli | 46 00 51 N | 113 40 58 W |
| Montana Regent Mine | Mine | 1574 | Broadwater | 46 35 08 N | 111 26 36 W |
| Montana River Outfitters Campground | Locale | 1086 | Lewis and Clark | 47 00 22 N | 112 04 09 W |
| Montana School of the Deaf and Blind | School | 1056 | Cascade | 47 30 23 N | 111 14 18 W |
| Montana Silver Star Mine | Mine | 1537 | Broadwater | 46 05 60 N | 111 44 46 W |
| Montana Snow Bowl Ski Area | Locale | 1810 | Missoula | 47 01 25 N | 113 59 50 W |
| Montana Sports Medicine and Family Practice | Hospital | 1234 | Missoula | 47 10 12 N | 113 28 37 W |
| Montana Standard Mine | Mine | 925 | Sanders | 47 32 15 N | 115 31 49 W |
| Montana State Capitol | Building | 1260 | Lewis and Clark | 46 35 09 N | 112 01 06 W |
| Montana State Department of Lands | Locale | 917 | Flathead | 48 13 52 N | 114 19 52 W |
| Montana State Highway 83 Weigh Staton | Locale | 963 | Lake | 48 01 33 N | 113 57 27 W |
| Montana State Highway Department Sandhouse | Locale | 1922 | Jefferson | 45 55 22 N | 112 24 38 W |
| Montana State Highway Department Section House | Locale | 1551 | Jefferson | 45 50 15 N | 112 18 48 W |
| Montana State Highway Department Section House | Locale | 1652 | Silver Bow | 45 45 05 N | 112 44 37 W |
| Montana State Hospital Galen Campus | Hospital | 1454 | Deer Lodge | 46 14 08 N | 112 46 52 W |
| Montana State Hospital Warm Springs Campus | Hospital | 1473 | Deer Lodge | 46 10 49 N | 112 47 40 W |
| Montana State Library | Building | 1255 | Lewis and Clark | 46 35 11 N | 112 00 51 W |
| Montana State Nursery | Locale | 1212 | Lewis and Clark | 46 36 07 N | 112 05 55 W |
| Montana State Prison Ranch Number 2 | Locale | 1486 | Powell | 46 17 27 N | 112 49 29 W |
| Montana State Soldiers Home | Locale | 912 | Flathead | 48 21 15 N | 114 12 38 W |
| Montana State Training School | School | 1495 | Jefferson | 46 13 38 N | 112 07 11 W |
| Montana State University | School | 1485 | Gallatin | 45 40 11 N | 111 03 11 W |
| Montana State University - Billings | School | 988 | Yellowstone | 45 47 48 N | 108 31 26 W |
| Montana State University - Northern | School | 739 | Blaine | 48 36 42 N | 109 21 30 W |
| Montana State University - Northern | School | 1021 | Cascade | 47 30 60 N | 111 20 03 W |
| Montana State University College of Technology - Great Falls | School | 1052 | Cascade | 47 29 10 N | 111 16 13 W |
| Montana State Veterans Cemetery | Cemetery | 1204 | Lewis and Clark | 46 36 30 N | 112 05 06 W |
| Montana Surgery Center | Hospital | 1686 | Silver Bow | 46 00 10 N | 112 32 21 W |
| Montana Tech of the University of Montana | School | 1763 | Silver Bow | 46 00 44 N | 112 33 26 W |
| Montana Tech of the University of Montana Library | Building | 1758 | Silver Bow | 46 00 46 N | 112 33 33 W |
| Montana Twister Mine | Mine | 2248 | Madison | 45 12 55 N | 111 55 31 W |
| Montana Union Transfer (historical) | Locale | 1682 | Silver Bow | 46 00 20 N | 112 29 48 W |
| Montana Urology Incorporated | Hospital | 1723 | Silver Bow | 46 00 27 N | 112 32 47 W |
| Montana Valley Eye Clinic | Hospital | 1382 | Powell | 46 23 49 N | 112 44 06 W |
| Montana Veterans Home | Hospital | 912 | Flathead | 48 21 14 N | 114 12 37 W |