Feature Name | Class | Elev. meters | County | Latitude DMS | Longitude DMS |
| Community Bible Church | Church | 801 | Chouteau | 47 49 12 N | 110 40 05 W |
| Community Bible Church | Church | 637 | Dawson | 47 06 13 N | 104 42 14 W |
| Community Bible Church | Church | 634 | Roosevelt | 48 05 59 N | 105 38 40 W |
| Community Bible Fellowship | Church | 1143 | Lewis and Clark | 46 38 60 N | 112 01 13 W |
| Community Chiropractic Clinic | Hospital | 1245 | Fergus | 47 03 21 N | 109 26 28 W |
| Community Christian School | School | 1185 | Ravalli | 46 01 21 N | 114 10 45 W |
| Community Church | Church | 1470 | Park | 45 25 16 N | 110 37 54 W |
| Community Church | Church | 688 | Phillips | 48 21 24 N | 107 52 15 W |
| Community Church (historical) | Church | 1044 | Carter | 45 53 20 N | 104 33 10 W |
| Community Clinic | Hospital | 900 | Fallon | 46 21 56 N | 104 16 52 W |
| Community Congregational Church | Church | 752 | Sanders | 47 35 44 N | 115 20 48 W |
| Community Congregational Church | Church | 1231 | Stillwater | 45 31 14 N | 109 26 35 W |
| Community Congregational United Church of Christ | Church | 1097 | Stillwater | 45 38 21 N | 109 15 15 W |
| Community Covenant Church | Church | 974 | Missoula | 46 50 58 N | 114 00 20 W |
| Community Evangelical Free Church | Church | 1377 | Powell | 46 23 55 N | 112 44 23 W |
| Community Fellowship | Church | 929 | Lake | 47 31 44 N | 114 06 05 W |
| Community Health Nurse | Hospital | 1208 | Granite | 46 40 03 N | 113 08 50 W |
| Community Hospital of Anaconda | Hospital | 1613 | Deer Lodge | 46 07 58 N | 112 57 25 W |
| Community Medical Center | Hospital | 964 | Missoula | 46 50 52 N | 114 02 53 W |
| Community Medical Center Heliport | Airport | 977 | Missoula | 46 52 11 N | 113 59 29 W |
| Community Memorial Hospital | Hospital | 595 | Richland | 47 42 48 N | 104 10 23 W |
| Community Methodist Church | Church | 1271 | Fergus | 46 58 25 N | 109 41 43 W |
| Community Nursing Home of Anaconda | Hospital | 1613 | Deer Lodge | 46 07 58 N | 112 57 25 W |
| Community Park | Park | 630 | Dawson | 47 06 14 N | 104 42 51 W |
| Community Presbyterian Church | Church | 797 | Garfield | 47 19 23 N | 106 54 42 W |
| Community Presbyterian Church | Church | 584 | Richland | 47 51 12 N | 104 02 47 W |
| Community Presbyterian Church | Church | 811 | Treasure | 46 17 34 N | 107 14 03 W |
| Community Protestant Church | Church | 2031 | Gallatin | 44 39 53 N | 111 06 28 W |
| Community School | School | 867 | Big Horn | 45 52 36 N | 107 36 47 W |
| Community School (historical) | School | 843 | Phillips | 48 43 43 N | 107 45 08 W |
| Community Union Cemetery | Cemetery | 858 | Fallon | 46 25 05 N | 104 31 46 W |
| Community United Methodist Church | Church | 961 | Chouteau | 47 36 07 N | 110 16 09 W |
| Community United Methodist Church | Church | 913 | Flathead | 48 03 55 N | 114 04 23 W |
| Community United Methodist Church | Church | 1013 | Toole | 48 30 18 N | 111 51 39 W |
| Community United Methodist Church of Cascade | Church | 1035 | Cascade | 47 16 32 N | 111 42 06 W |
| Como | Populated Place | 1159 | Ravalli | 46 05 23 N | 114 10 31 W |
| Como (historical) | Locale | 1159 | Ravalli | 46 05 23 N | 114 10 31 W |
| Como Lake Dam | Dam | 1295 | Ravalli | 46 03 54 N | 114 14 15 W |
| Como Peaks | Summit | 2916 | Ravalli | 46 00 07 N | 114 21 05 W |
| Como Post Office (historical) | Post Office | 1159 | Ravalli | 46 05 23 N | 114 10 31 W |
| Como School (historical) | School | 1160 | Ravalli | 46 05 27 N | 114 10 32 W |
| Companion Lake | Lake | 2861 | Park | 45 04 56 N | 109 54 14 W |
| Company Ditch | Canal | 2020 | Beaverhead | 45 19 19 N | 113 26 22 W |
| Company Ditch | Canal | 1348 | Powell | 46 53 12 N | 113 05 22 W |
| Company Gulch | Valley | | Madison | 45 04 40 N | 111 56 18 W |
| Complimentary Dam | Dam | 1177 | Judith Basin | 47 22 06 N | 110 22 03 W |
| Compromise Gulch | Valley | | Cascade | 46 56 06 N | 110 44 16 W |
| Compromise Mine | Mine | 1805 | Cascade | 46 56 16 N | 110 44 08 W |
| Compromise Mine | Mine | 2090 | Meagher | 46 28 07 N | 110 40 40 W |
| Compromise Pass Ski Trail | Trail | 2326 | Meagher | 46 50 19 N | 110 42 32 W |
| Compton Dam | Dam | 808 | Phillips | 48 57 06 N | 107 48 50 W |
| Comstock Mine | Mine | 2012 | Beaverhead | 45 16 33 N | 112 54 43 W |
| Con Kelley Mountain | Summit | 2153 | Lake | 47 57 04 N | 113 46 29 W |
| Conagra Incorporated Elevator | Locale | 587 | Richland | 47 42 40 N | 104 08 42 W |
| Conan Coulee | Valley | | Judith Basin | 47 02 44 N | 110 26 16 W |
| Conant Creek | Stream | | Sweet Grass | 45 41 48 N | 110 01 24 W |
| Concentrated Mine | Mine | 1697 | Cascade | 46 56 32 N | 110 44 40 W |
| Concentrator (historical) | Locale | 1453 | Jefferson | 46 22 50 N | 112 03 43 W |
| Concord Mountain | Summit | 2108 | Lewis and Clark | 47 17 29 N | 113 00 22 W |
| Concordia Lutheran Church | Church | 768 | Rosebud | 46 16 03 N | 106 40 50 W |
| Condon | Populated Place | 1131 | Missoula | 47 31 40 N | 113 42 38 W |
| Condon Community Church | Church | 1131 | Missoula | 47 31 40 N | 113 42 38 W |
| Condon Creek | Stream | | Missoula | 47 36 41 N | 113 46 04 W |
| Condon Forest Service Station | Building | 1124 | Missoula | 47 32 06 N | 113 43 05 W |
| Condon Lookout Tower | Tower | 1101 | Missoula | 47 35 05 N | 113 44 08 W |
| Condon Post Office | Post Office | 1091 | Missoula | 47 34 07 N | 113 44 53 W |
| Condon Volunteer Fire Department | Building | 1131 | Missoula | 47 31 40 N | 113 42 38 W |
| Condon-US Forest Service Airport | Airport | 1121 | Missoula | 47 32 19 N | 113 43 16 W |
| Condor Peak | Summit | 2194 | Flathead | 48 00 56 N | 113 26 30 W |
| Cone Butte | Summit | 1769 | Fergus | 47 15 31 N | 109 04 19 W |
| Cone Butte (historical) | Populated Place | 1117 | Fergus | 47 27 12 N | 109 24 33 W |
| Cone Creek | Stream | | Ravalli | 45 44 59 N | 114 23 41 W |
| Cone Peak | Summit | 2234 | Flathead | 47 38 59 N | 113 16 43 W |
| Cone Peak | Summit | 2945 | Gallatin | 44 55 41 N | 111 11 27 W |
| Conehead Dam | Dam | 797 | Valley | 48 54 12 N | 106 42 32 W |
| Conestoga Campground | Locale | 1526 | Meagher | 46 32 30 N | 110 54 41 W |
| Coney Lake | Lake | 2925 | Madison | 44 57 37 N | 111 29 22 W |
| Coney Peak | Summit | 1881 | Sanders | 47 40 58 N | 114 46 06 W |
| Confederate Dam | Dam | 2006 | Beaverhead | 44 53 48 N | 113 15 57 W |
| Confederate Gulch | Valley | | Broadwater | 46 28 52 N | 111 32 26 W |
| Conflict | Mine | 1678 | Lewis and Clark | 46 28 57 N | 112 14 52 W |
| Confusion Reservoir | Reservoir | 782 | Valley | 48 29 32 N | 106 54 41 W |
| Congdon Creek | Stream | | Granite | 46 29 22 N | 111 30 45 W |
| Congdon Mine | Mine | 1958 | Granite | 46 07 58 N | 113 38 56 W |
| Congdon Peak | Summit | 2711 | Granite | 46 05 10 N | 113 46 16 W |
| Conger Creek | Stream | | Powell | 47 11 47 N | 113 00 51 W |
| Conger Creek Trail | Trail | 2016 | Powell | 47 12 53 N | 113 04 45 W |
| Conger Point | Summit | 2355 | Powell | 47 12 07 N | 113 05 09 W |
| Conger Point Trail | Trail | 2360 | Powell | 47 12 41 N | 113 05 45 W |
| Congregation B'Nai Israel | Church | 1743 | Silver Bow | 46 00 43 N | 112 32 30 W |
| Congregational Bible Church | Church | 1068 | Cascade | 47 30 20 N | 111 48 37 W |
| Congregational Church | Church | 1251 | Sweet Grass | 45 49 58 N | 109 57 05 W |
| Congregational Church (historical) | Church | 809 | Fallon | 46 28 27 N | 104 38 42 W |
| Congregational Church (historical) | Church | 622 | Sheridan | 48 41 20 N | 104 27 25 W |
| Congregational Church of Dodson | Church | 697 | Phillips | 48 23 44 N | 108 14 39 W |
| Conical Peak | Summit | 3266 | Park | 46 03 20 N | 110 19 54 W |
| Coniff Creek | Stream | | Lincoln | 48 14 48 N | 114 58 12 W |
| Conkelley | Locale | 941 | Flathead | 48 23 22 N | 114 07 58 W |
| Conkelley | Populated Place | 941 | Flathead | 48 23 22 N | 114 07 58 W |
| Conklin Lake | Lake | 2033 | Beaverhead | 44 41 51 N | 111 31 49 W |
| Conko Lake | Lake | 1948 | Missoula | 47 26 11 N | 113 50 35 W |
| Conley Post Office (historical) | Post Office | 764 | Chouteau | 47 55 03 N | 110 03 16 W |
| Conleys Lake | Reservoir | 1595 | Powell | 46 23 12 N | 112 51 02 W |
| Conleys Lake Dam | Dam | 1595 | Powell | 46 23 12 N | 112 51 03 W |
| Conlin (historical) | Locale | 662 | Dawson | 46 51 58 N | 104 59 22 W |
| Conlin Gulch | Valley | | Park | 45 20 22 N | 110 40 32 W |
| Conlin Post Office (historical) | Post Office | 662 | Dawson | 46 51 58 N | 104 59 22 W |
| Conn Creek | Stream | | Lincoln | 48 39 31 N | 115 46 18 W |
| Conn Ditch | Canal | 1501 | Granite | 46 31 54 N | 113 18 33 W |
| Conn Mountain | Summit | 1665 | Lincoln | 48 38 16 N | 115 48 34 W |