Feature Name | Class | Elev. meters | County | Latitude DMS | Longitude DMS |
| George Lake | Lake | 2351 | Park | 45 27 20 N | 110 31 57 W |
| George McCone Memorial County Library | Building | 747 | McCone | 47 24 56 N | 105 35 27 W |
| George Mine | Mine | 2532 | Park | 45 02 40 N | 110 36 23 W |
| George Mines | Mine | 2532 | Deer Lodge | 46 13 21 N | 113 04 11 W |
| George Norman Trailer Court | Populated Place | 1839 | Gallatin | 45 15 02 N | 111 15 08 W |
| George Ore Memorial Park | Park | 898 | Petroleum | 47 00 15 N | 108 20 52 W |
| George Park | Park | 996 | Custer | 46 19 40 N | 105 04 18 W |
| George Place | Populated Place | 1541 | Carbon | 45 21 37 N | 109 29 55 W |
| George Place (historical) | Populated Place | 1549 | Carbon | 45 21 33 N | 109 31 01 W |
| George Post Office (historical) | Post Office | 909 | Liberty | 48 19 40 N | 110 56 36 W |
| George Rath Number 2 Dam | Dam | 1147 | Golden Valley | 46 25 42 N | 109 03 51 W |
| George Rath Number 3 Dam | Dam | 1206 | Golden Valley | 46 24 24 N | 109 08 33 W |
| George Welch Dam | Dam | 838 | Hill | 48 51 24 N | 110 15 39 W |
| George-Dana Ditch | Canal | 1532 | Carbon | 45 21 28 N | 109 28 51 W |
| Georges Draw | Valley | | Ravalli | 45 51 49 N | 113 53 22 W |
| Georges Gorge Ski Trail | Trail | 1454 | Flathead | 48 29 06 N | 114 21 13 W |
| Georges Pond | Lake | 939 | Valley | 48 46 18 N | 106 32 35 W |
| Georgetown | Populated Place | 1987 | Deer Lodge | 46 11 58 N | 113 14 47 W |
| Georgetown (historical) | Locale | 1987 | Deer Lodge | 46 11 58 N | 113 14 47 W |
| Georgetown Lake | Reservoir | 1939 | Granite | 46 12 55 N | 113 16 50 W |
| Georgetown Lake Dam | Dam | 1950 | Deer Lodge | 46 12 48 N | 113 16 51 W |
| Georgia Creek | Stream | | Powell | 46 42 18 N | 112 35 17 W |
| Gerald Craft Number 1 Dam | Dam | 1139 | Carter | 45 10 48 N | 104 52 08 W |
| Gerald Craft Number 2 Dam | Dam | 1146 | Carter | 45 10 36 N | 104 51 38 W |
| Gerald Craft Number 3 Dam | Dam | 1162 | Carter | 45 08 60 N | 104 53 32 W |
| Gerald Craft Number 5 Dam | Dam | 1140 | Carter | 45 08 30 N | 104 52 44 W |
| Gerald Craft Number 6 Dam | Dam | 1164 | Carter | 45 07 24 N | 104 52 50 W |
| Gerald Kane Dam | Dam | 1146 | Blaine | 48 01 18 N | 109 31 33 W |
| Geraldine | Locale | 956 | Chouteau | 47 36 14 N | 110 15 56 W |
| Geraldine | Populated Place | 956 | Chouteau | 47 36 13 N | 110 15 57 W |
| Geraldine Airport | Airport | 965 | Chouteau | 47 35 47 N | 110 15 60 W |
| Geraldine Branch Library | Building | 956 | Chouteau | 47 36 13 N | 110 15 57 W |
| Geraldine Cemetery | Cemetery | 957 | Chouteau | 47 35 42 N | 110 15 23 W |
| Geraldine Clinic | Hospital | 956 | Chouteau | 47 36 13 N | 110 15 57 W |
| Geraldine Post Office | Post Office | 956 | Chouteau | 47 36 12 N | 110 15 58 W |
| Geraldine Public Schools | School | 960 | Chouteau | 47 36 12 N | 110 16 11 W |
| Gerard Creek | Stream | | Judith Basin | 47 24 48 N | 110 21 18 W |
| Gerard Homestead | Locale | 1974 | Park | 45 54 39 N | 110 20 22 W |
| Gerard Ranch | Locale | 1707 | Madison | 45 11 53 N | 111 48 11 W |
| Gerber | Populated Place | 1031 | Cascade | 47 27 04 N | 111 09 54 W |
| Gerdts Dam | Dam | 1117 | Golden Valley | 46 21 12 N | 109 03 21 W |
| Gergen Creek | Stream | | Carter | 45 33 47 N | 104 12 34 W |
| Gergen Creek | Stream | | Flathead | 48 29 04 N | 114 43 57 W |
| Gergen Reservoir | Reservoir | 1143 | Carter | 45 35 31 N | 104 14 42 W |
| Gergen Spring | Spring | 1175 | Carter | 45 35 48 N | 104 13 33 W |
| Gerhard Corner | Locale | 1001 | Fergus | 47 35 56 N | 109 10 27 W |
| Gerhard Post Office (historical) | Post Office | 997 | Fergus | 47 35 52 N | 109 09 38 W |
| Gerhard School (historical) | School | 1001 | Fergus | 47 35 55 N | 109 10 27 W |
| Germaine Coulee | Valley | | Garfield | 47 24 16 N | 107 54 15 W |
| German Baptist Church (historical) | Church | 1012 | Chouteau | 47 56 10 N | 111 20 37 W |
| German Baptist Church Cemetery | Cemetery | 1012 | Chouteau | 47 56 10 N | 111 20 42 W |
| German Bread Dam | Dam | 917 | Blaine | 48 23 42 N | 109 07 27 W |
| German Gulch | Valley | | Silver Bow | 46 01 12 N | 112 47 22 W |
| German Gulch (historical) | Locale | 1925 | Silver Bow | 45 57 40 N | 112 50 23 W |
| German Gulch Placer Mine | Mine | 1925 | Silver Bow | 45 57 40 N | 112 50 23 W |
| German Gulch Post Office (historical) | Post Office | 1925 | Silver Bow | 45 57 40 N | 112 50 23 W |
| German Lutheran Church | Church | 720 | Sheridan | 48 53 22 N | 104 46 32 W |
| German Lutheran Church (historical) | Church | 1179 | Teton | 47 53 50 N | 112 09 33 W |
| German Number 2 Dam | Dam | 1065 | Carter | 45 34 12 N | 104 13 08 W |
| German Number 3 Dam | Dam | 963 | Carter | 45 47 18 N | 104 20 44 W |
| German Number 9 Dam | Dam | 959 | Carter | 45 47 06 N | 104 19 26 W |
| German Reservoir Dam | Dam | 1022 | Toole | 48 27 30 N | 111 38 45 W |
| Germania Numbers 1,2,3 Mine | Mine | 1713 | Silver Bow | 46 00 26 N | 112 33 43 W |
| Germo Coulee | Valley | | Rosebud | 46 46 57 N | 107 09 48 W |
| Gerold Gibbs Dam | Dam | 774 | Garfield | 47 16 36 N | 106 10 20 W |
| Geronimo Ski Trail | Trail | 2326 | Meagher | 46 50 19 N | 110 42 32 W |
| Gertison Dam | Dam | 680 | Dawson | 46 54 13 N | 104 43 07 W |
| Gertison Dam | Dam | 680 | Dawson | 46 54 12 N | 104 43 08 W |
| Gertrude Dam | Dam | 751 | Phillips | 48 36 12 N | 107 22 20 W |
| Get Down Dam | Dam | 882 | Garfield | 47 15 24 N | 107 19 08 W |
| Getaway Coulee | Valley | | Garfield | 47 38 14 N | 106 59 49 W |
| Getaway Pass | Gap | 1230 | Lake | 47 18 39 N | 114 11 05 W |
| Getchell Coulee | Valley | | Rosebud | 46 44 18 N | 107 46 59 W |
| Gethsemane Episcopal Church | Church | 1294 | Gallatin | 45 51 32 N | 111 19 41 W |
| Getner Creek | Stream | | Lincoln | 48 17 05 N | 115 30 11 W |
| Gettel School (historical) | School | 1174 | Cascade | 47 39 15 N | 111 33 40 W |
| Gettin' High Dam | Dam | 614 | Roosevelt | 48 06 06 N | 104 22 14 W |
| Gettysburg (historical) | Locale | 683 | Richland | 47 38 10 N | 104 28 32 W |
| Gettysburg School (historical) | School | 707 | Richland | 47 37 02 N | 104 28 26 W |
| Geyser | Locale | 1277 | Judith Basin | 47 15 33 N | 110 29 36 W |
| Geyser | Populated Place | 1277 | Judith Basin | 47 15 33 N | 110 29 36 W |
| Geyser Cemetery | Cemetery | 1265 | Judith Basin | 47 15 43 N | 110 30 26 W |
| Geyser Community Presbyterian Church | Church | 1277 | Judith Basin | 47 15 33 N | 110 29 36 W |
| Geyser Creek | Stream | | Cascade | 47 18 17 N | 111 29 49 W |
| Geyser Creek | Stream | | Madison | 44 55 37 N | 111 53 31 W |
| Geyser Elevator | Locale | 1277 | Judith Basin | 47 15 33 N | 110 29 36 W |
| Geyser Fire Department | Building | 1277 | Judith Basin | 47 15 33 N | 110 29 36 W |
| Geyser Post Office | Post Office | 1277 | Judith Basin | 47 15 33 N | 110 29 36 W |
| Geyser Public Schools | School | 1279 | Judith Basin | 47 15 26 N | 110 29 33 W |
| Geyser Rest Area | Locale | 1323 | Judith Basin | 47 13 43 N | 110 26 53 W |
| Geyser Spring | Spring | 921 | Garfield | 46 56 28 N | 107 29 58 W |
| Geyser Spring Coulee | Valley | | Treasure | 46 23 57 N | 107 13 46 W |
| Geyser Trailer Park | Populated Place | 1372 | Park | 45 39 45 N | 110 33 40 W |
| Ghost Coulee | Stream | | Garfield | 47 35 29 N | 107 42 28 W |
| Ghost Lake | Lake | 3070 | Carbon | 45 02 24 N | 109 38 15 W |
| Ghost Number 1 Dam | Dam | 872 | Valley | 48 57 00 N | 106 13 56 W |
| Ghost Number 2 Dam | Dam | 704 | Valley | 48 17 06 N | 106 59 26 W |
| Ghost Number 3 Dam | Dam | 836 | Valley | 48 29 48 N | 106 06 08 W |
| Ghost Number 5 Dam | Dam | 916 | Valley | 48 44 18 N | 106 06 38 W |
| Ghost Number 6 Dam | Dam | 903 | Valley | 48 43 54 N | 106 11 32 W |
| Giacometto Number 1 Dam | Dam | 1034 | Powder River | 45 06 30 N | 105 14 50 W |
| Giant Hill | Summit | 1889 | Broadwater | 46 18 24 N | 111 41 15 W |
| Giant Mine | Mine | 2276 | Madison | 45 35 36 N | 112 09 53 W |
| Giant Mine | Mine | 2230 | Madison | 45 35 40 N | 112 09 58 W |
| Giant Powder Creek | Stream | | Beaverhead | 45 31 25 N | 113 11 14 W |
| Giant Spring | Spring | 2105 | Missoula | 47 18 47 N | 113 52 11 W |
| Giant Springs | Spring | 990 | Cascade | 47 32 06 N | 111 13 43 W |
| Giant Springs Heritage State Park | Park | 991 | Cascade | 47 32 04 N | 111 13 47 W |
| Giant Springs Trout Hatchery | Locale | 994 | Cascade | 47 32 04 N | 111 13 42 W |
| Giant Sunrise Mine | Mine | 1132 | Lincoln | 48 23 01 N | 115 55 32 W |