Feature Name | Class | Elev. meters | County | Latitude DMS | Longitude DMS |
| North Fork Second Creek Mine | Mine | 1081 | Mineral | 47 08 27 N | 114 46 25 W |
| North Fork Sevenmile Creek | Stream | | Sweet Grass | 45 55 04 N | 109 54 55 W |
| North Fork Seventeenmile Creek | Stream | | Lincoln | 48 39 32 N | 115 46 09 W |
| North Fork Sheep Coulee | Valley | | Phillips | 47 57 24 N | 107 43 02 W |
| North Fork Sheep Creek | Stream | | Beaverhead | 45 31 10 N | 113 22 16 W |
| North Fork Sheep Creek | Stream | | Cascade | 47 09 37 N | 111 47 31 W |
| North Fork Sheep Creek | Stream | | Custer | 46 14 47 N | 105 03 54 W |
| North Fork Sheep Creek | Stream | | Pondera | 48 12 11 N | 112 34 53 W |
| North Fork Sheephead Creek | Stream | | Ravalli | 45 45 23 N | 114 28 41 W |
| North Fork Silver Butte Creek | Stream | | Lincoln | 47 56 34 N | 115 31 08 W |
| North Fork Simms Creek | Stream | | Lewis and Clark | 47 28 13 N | 112 01 23 W |
| North Fork Sioux Pass Creek | Stream | | Big Horn | 45 14 57 N | 107 11 53 W |
| North Fork Sixmile Creek | Stream | | Custer | 46 02 45 N | 106 03 57 W |
| North Fork Sixmile Creek | Stream | | Park | 45 14 12 N | 110 44 43 W |
| North Fork Sleeman Creek | Stream | | Missoula | 46 47 18 N | 114 08 25 W |
| North Fork Smith Creek | Stream | | Custer | 46 24 45 N | 105 21 06 W |
| North Fork Smith River | Stream | | Meagher | 46 31 43 N | 110 58 40 W |
| North Fork Sorrel Horse Creek | Stream | | Big Horn | 45 59 56 N | 107 35 41 W |
| North Fork South Creek | Stream | | Valley | 48 54 31 N | 106 42 53 W |
| North Fork Spanish Creek | Stream | | Gallatin | 45 29 55 N | 111 19 21 W |
| North Fork Specimen Creek | Stream | | Park | 45 01 43 N | 111 02 31 W |
| North Fork Spotted Dog Creek | Stream | | Powell | 46 27 50 N | 112 31 29 W |
| North Fork Spring Creek | Stream | | Big Horn | 45 07 56 N | 106 55 34 W |
| North Fork Spring Creek | Stream | | Gallatin | 45 43 30 N | 110 52 23 W |
| North Fork Spring Creek | Stream | | Granite | 46 20 40 N | 113 29 55 W |
| North Fork Spring Creek | Stream | | Prairie | 46 45 19 N | 105 17 58 W |
| North Fork Squaw Creek | Stream | | Madison | 44 56 53 N | 111 31 36 W |
| North Fork Squirrel Creek | Stream | | Big Horn | 45 06 34 N | 107 02 04 W |
| North Fork Stickney Creek | Stream | | Lewis and Clark | 47 05 19 N | 111 55 30 W |
| North Fork Sullivan Creek | Stream | | Lincoln | 48 52 37 N | 115 20 00 W |
| North Fork Sun River | Stream | | Teton | 47 37 30 N | 112 50 45 W |
| North Fork Surprise Creek | Stream | | Judith Basin | 47 10 25 N | 110 20 21 W |
| North Fork Sweeney Creek | Stream | | Ravalli | 46 37 16 N | 114 11 42 W |
| North Fork Sweet Grass Creek | Stream | | Park | 46 05 52 N | 110 20 05 W |
| North Fork Sweetwater Creek | Stream | | Madison | 45 07 02 N | 112 19 59 W |
| North Fork Taffy Creek | Stream | | Fergus | 47 40 02 N | 109 15 37 W |
| North Fork Taylor Creek | Stream | | Powder River | 45 15 53 N | 106 06 01 W |
| North Fork Taylor Creek Well | Well | 1169 | Powder River | 45 16 21 N | 105 59 52 W |
| North Fork Tepee Creek | Stream | | Madison | 44 46 35 N | 111 42 48 W |
| North Fork Teton River | Stream | | Teton | 47 52 59 N | 112 37 59 W |
| North Fork Thirteenmile Creek | Stream | | Dawson | 47 24 37 N | 104 47 06 W |
| North Fork Three Bar Creek | Stream | | Powder River | 45 01 60 N | 105 39 49 W |
| North Fork Threemile Creek | Stream | | Powder River | 45 30 01 N | 106 02 18 W |
| North Fork Threemile Creek Well | Well | 1060 | Powder River | 45 30 27 N | 105 59 37 W |
| North Fork Trail | Trail | 1656 | Lewis and Clark | 47 11 46 N | 112 54 13 W |
| North Fork Trail Creek | Stream | | Carbon | 45 05 46 N | 108 12 57 W |
| North Fork Trail Creek | Stream | | Park | 45 30 11 N | 110 50 52 W |
| North Fork Trail Creek | Stream | | Rosebud | 45 59 09 N | 106 51 01 W |
| North Fork Trapper Creek | Stream | | Ravalli | 45 55 11 N | 114 14 14 W |
| North Fork Travis Creek | Stream | | Jefferson | 46 29 56 N | 112 07 15 W |
| North Fork Trout Creek | Stream | | Big Horn | 44 59 42 N | 108 00 41 W |
| North Fork Trout Creek | Stream | | Mineral | 47 00 13 N | 114 59 33 W |
| North Fork Tucker Creek | Stream | | Silver Bow | 45 48 01 N | 112 40 40 W |
| North Fork Tule Creek | Stream | | Roosevelt | 48 19 00 N | 105 35 55 W |
| North Fork Tusler Creek | Stream | | McCone | 47 12 56 N | 105 33 39 W |
| North Fork Two Leggins Creek | Stream | | Big Horn | 45 38 37 N | 107 45 18 W |
| North Fork Two Tree Creek | Stream | | Powder River | 45 29 24 N | 105 43 07 W |
| North Fork Valley Creek | Stream | | Sanders | 47 13 06 N | 114 13 20 W |
| North Fork Valley Creek | Stream | | Stillwater | 45 43 14 N | 109 00 23 W |
| North Fork Waddle Creek | Stream | | Big Horn | 45 01 30 N | 106 29 16 W |
| North Fork Wall Creek | Stream | | Madison | 44 57 12 N | 111 42 11 W |
| North Fork Warm Spring Creek | Stream | | Fergus | 47 11 07 N | 109 16 36 W |
| North Fork Warm Springs Creek | Stream | | Jefferson | 46 25 16 N | 111 56 52 W |
| North Fork West Fork Gallating River | Stream | | Gallatin | 45 16 01 N | 111 19 15 W |
| North Fork Whetstone Creek | Stream | | Meagher | 46 31 36 N | 110 28 18 W |
| North Fork White Rock Coulee | Valley | | Phillips | 48 01 26 N | 108 00 17 W |
| North Fork Whitetail Creek | Stream | | Carter | 45 24 17 N | 104 40 22 W |
| North Fork Whitetail Creek | Stream | | Pondera | 48 17 56 N | 112 49 27 W |
| North Fork Whitman Coulee | Valley | | Big Horn | 45 46 09 N | 107 41 21 W |
| North Fork Wigwam Creek | Stream | | Madison | 45 09 16 N | 111 52 32 W |
| North Fork Willoughby Creek | Stream | | Ravalli | 46 27 13 N | 113 59 07 W |
| North Fork Willow Creek | Stream | | Carter | 45 06 14 N | 104 37 33 W |
| North Fork Willow Creek | Stream | | Judith Basin | 47 04 09 N | 110 14 20 W |
| North Fork Willow Creek | Stream | | Lewis and Clark | 47 32 32 N | 112 28 38 W |
| North Fork Willow Creek | Stream | | Park | 45 46 58 N | 110 36 10 W |
| North Fork Willow Creek | Stream | | Ravalli | 46 17 40 N | 113 55 27 W |
| North Fork Willow Creek | Stream | | Teton | 47 48 42 N | 112 28 59 W |
| North Fork Willow Creek | Stream | | Valley | 47 53 18 N | 107 13 58 W |
| North Fork Woods Gulch Creek | Stream | | Meagher | 46 30 38 N | 111 02 20 W |
| North Fork Woody Creek | Stream | | Garfield | 47 32 40 N | 106 38 45 W |
| North Fork Wounded Man Creek | Stream | | Stillwater | 45 14 02 N | 110 02 21 W |
| North Fork Yager Creek | Stream | | Powder River | 45 26 57 N | 106 03 26 W |
| North Fork Yellow Water Creek | Stream | | Petroleum | 46 55 23 N | 108 33 53 W |
| North Forty Ski Trail | Trail | 2528 | Carbon | 45 11 15 N | 109 21 03 W |
| North Forty Ski Trail | Trail | 1816 | Lewis and Clark | 46 45 12 N | 112 18 50 W |
| North Frenchman Coulee | Valley | | Valley | 47 53 56 N | 107 19 58 W |
| North Frying Pan Creek | Stream | | Beaverhead | 44 56 48 N | 113 26 10 W |
| North Fuhrman School (historical) | School | 881 | Valley | 48 37 43 N | 106 22 12 W |
| North Gap Creek | Stream | | Chouteau | 47 34 22 N | 110 39 24 W |
| North Getaway Coulee | Valley | | Garfield | 47 37 32 N | 106 58 03 W |
| North Gold Creek | Stream | | Granite | 46 29 17 N | 113 01 40 W |
| North Grand Park | Park | 1458 | Gallatin | 45 41 12 N | 111 02 23 W |
| North Great Falls (historical) | Populated Place | 1077 | Cascade | 47 31 60 N | 111 15 41 W |
| North Great Falls Post Office (historical) | Post Office | 1077 | Cascade | 47 31 60 N | 111 15 41 W |
| North Harb School (historical) | School | 776 | Phillips | 48 12 39 N | 107 28 09 W |
| North Harkins Well | Well | 1008 | Carter | 45 46 14 N | 104 41 06 W |
| North Harlem Colony | Populated Place | 799 | Blaine | 48 35 27 N | 108 45 30 W |
| North Harlem Colony School | School | 796 | Blaine | 48 35 22 N | 108 45 30 W |
| North Havre Community Hall | Locale | 839 | Hill | 48 39 15 N | 109 40 48 W |
| North Havre Lutheran Church (historical) | Church | 840 | Hill | 48 39 14 N | 109 40 55 W |
| North Havre Lutheran Church Cemetery (historical) | Cemetery | 840 | Hill | 48 39 14 N | 109 40 54 W |
| North Helmville Canal | Canal | 1338 | Powell | 46 53 23 N | 112 54 40 W |
| North Hemlock Lake | Lake | 2081 | Missoula | 47 27 15 N | 113 50 10 W |
| North Hidden Lake | Lake | 3019 | Carbon | 45 01 15 N | 109 38 11 W |
| North Hills | Range | 1084 | Missoula | 46 54 50 N | 114 00 23 W |
| North Home Creek | Stream | | Custer | 46 16 20 N | 105 07 59 W |
| North Home Mines | Mine | 1636 | Broadwater | 46 10 48 N | 111 44 09 W |
| North Horsethief Canyon | Valley | | Fergus | 46 45 56 N | 109 12 51 W |
| North Jefferson Creek | Stream | | Teton | 47 48 24 N | 112 35 16 W |
| North Jocko Peak | Summit | 2347 | Missoula | 47 16 28 N | 113 48 43 W |