Feature Name | Class | Elev. meters | County | Latitude DMS | Longitude DMS |
| New Deal Mine | Mine | 1785 | Meagher | 46 38 36 N | 110 25 02 W |
| New Deal Mine | Mine | 1795 | Meagher | 46 38 33 N | 110 25 08 W |
| New Deal Post Office (historical) | Post Office | 634 | Valley | 48 01 28 N | 106 27 53 W |
| New Deal School (historical) | School | 839 | Phillips | 48 44 58 N | 107 26 48 W |
| New Dengel School (historical) | School | 1034 | Fergus | 47 10 15 N | 108 48 21 W |
| New Departure Mine | Mine | 2064 | Beaverhead | 45 11 51 N | 112 55 19 W |
| New Departure Mine | Mine | 2034 | Beaverhead | 45 11 52 N | 112 55 13 W |
| New Departure Mine | Mine | 2260 | Granite | 46 18 48 N | 113 13 58 W |
| New Dorsey (historical) | Locale | 1641 | Meagher | 46 17 24 N | 110 44 45 W |
| New Dorsey School (historical) | School | 1641 | Meagher | 46 17 24 N | 110 44 45 W |
| New Era/Downey Mine | Mine | 1793 | Silver Bow | 46 01 13 N | 112 32 57 W |
| New Gold Bar Mine | Mine | 2022 | Madison | 45 15 05 N | 111 58 08 W |
| New Haven (historical) | Populated Place | 1302 | Jefferson | 46 27 45 N | 111 59 11 W |
| New Hill Cemetery | Cemetery | 1656 | Deer Lodge | 46 08 22 N | 112 59 33 W |
| New Hope Apostolic Church | Church | 759 | Hill | 48 33 04 N | 109 40 27 W |
| New Hope School (historical) | School | 868 | Blaine | 48 28 51 N | 109 07 47 W |
| New Lanore Mine | Mine | 1551 | Mineral | 47 15 40 N | 115 17 54 W |
| New Lenore Mine | Mine | 1508 | Mineral | 47 15 31 N | 115 17 51 W |
| New Life Alliance Church | Church | 930 | Flathead | 48 05 45 N | 114 05 18 W |
| New Life Center | Church | 894 | Flathead | 48 10 60 N | 114 19 03 W |
| New Life Christian Center | Church | 910 | Lake | 47 40 54 N | 114 10 01 W |
| New Life Community Church | Church | 955 | Missoula | 46 49 20 N | 114 03 17 W |
| New Life Lutheran Church | Church | 1137 | Lewis and Clark | 46 39 40 N | 112 01 18 W |
| New Life United Methodist Church | Church | 1382 | Gallatin | 45 44 40 N | 111 11 11 W |
| New Life Victory Center | Church | 1090 | Stillwater | 45 38 08 N | 109 14 43 W |
| New Long School (historical) | School | 850 | Petroleum | 47 17 11 N | 108 22 43 W |
| New Meadows | Swamp | 2476 | Silver Bow | 45 55 09 N | 112 56 51 W |
| New Miami Colony | Populated Place | 1174 | Pondera | 48 11 31 N | 112 16 56 W |
| New Mine | Mine | 1889 | Madison | 45 36 24 N | 112 30 58 W |
| New Minot School (historical) | School | 686 | Phillips | 48 33 38 N | 107 29 38 W |
| New Prospect School (historical) | School | 1147 | Carbon | 45 14 10 N | 108 57 56 W |
| New Rockport Colony | Populated Place | 1135 | Teton | 47 51 49 N | 112 01 25 W |
| New Rockport Colony School | School | 1134 | Teton | 47 51 48 N | 112 01 18 W |
| New Rukavina School (historical) | School | 685 | Petroleum | 47 24 40 N | 107 55 05 W |
| New Schoolhouse Gulch | Valley | | Sweet Grass | 45 46 46 N | 109 49 02 W |
| New Seattle Mine | Mine | 1511 | Granite | 46 27 55 N | 113 14 28 W |
| New Song Assembly of God Church | Church | 1159 | Teton | 47 48 20 N | 112 10 41 W |
| New World Gulch | Valley | | Gallatin | 45 36 32 N | 110 55 32 W |
| New Year | Populated Place | 1468 | Fergus | 47 10 19 N | 109 17 26 W |
| New Year East Number 1 Mine | Mine | 1611 | Fergus | 47 09 09 N | 109 18 39 W |
| New Year East Number 2 Mine | Mine | 1653 | Fergus | 47 09 07 N | 109 18 43 W |
| New Year Gulch | Valley | | Fergus | 47 10 17 N | 109 18 19 W |
| New Year Gulch Mine | Mine | 1687 | Fergus | 47 09 25 N | 109 19 23 W |
| New Year Mine | Mine | 2187 | Deer Lodge | 46 12 33 N | 113 08 53 W |
| New Year Mine | Mine | 1580 | Fergus | 47 09 16 N | 109 19 03 W |
| New Year Mine | Mine | 1717 | Fergus | 47 09 13 N | 109 19 18 W |
| New Year Peak | Summit | 1793 | Fergus | 47 09 20 N | 109 20 22 W |
| New Year Post Office (historical) | Post Office | 1468 | Fergus | 47 10 19 N | 109 17 26 W |
| New Year Subsidence Mine | Mine | 1717 | Fergus | 47 09 13 N | 109 19 18 W |
| New York Belle Mine | Mine | 1762 | Madison | 45 31 50 N | 111 46 38 W |
| Newberg Post Office (historical) | Post Office | 672 | Phillips | 48 36 30 N | 107 39 28 W |
| Newberry Ditch | Canal | 1765 | Madison | 45 05 17 N | 112 07 07 W |
| Newberry Flat | Flat | 866 | Valley | 48 36 09 N | 106 47 29 W |
| Newberry Flat Reservoir | Reservoir | 845 | Valley | 48 34 30 N | 106 48 01 W |
| Newberry Knob | Summit | 1122 | Carter | 45 47 29 N | 104 40 33 W |
| Newcomb | Populated Place | 1708 | Silver Bow | 45 55 12 N | 112 31 11 W |
| Newcomb (historical) | Locale | 1708 | Silver Bow | 45 55 12 N | 112 31 11 W |
| Newcomer Spring | Spring | 1093 | Powder River | 45 26 47 N | 106 02 20 W |
| Newell Basin | Basin | 1881 | Madison | 45 27 55 N | 111 23 13 W |
| Newell Creek | Stream | | Powder River | 45 28 33 N | 106 09 55 W |
| Newell Creek Reservoir | Reservoir | 1017 | Rosebud | 45 28 23 N | 106 13 16 W |
| Newell Creek Well | Well | 1004 | Rosebud | 45 28 22 N | 106 12 56 W |
| Newhouse Reservoir | Reservoir | 983 | Blaine | 48 16 50 N | 108 58 52 W |
| Newhouse Reservoir Dam | Dam | 984 | Blaine | 48 16 60 N | 108 58 45 W |
| Newlan Creek | Stream | | Meagher | 46 35 27 N | 111 03 14 W |
| Newlan Creek Campground | Locale | 1625 | Meagher | 46 38 33 N | 110 55 18 W |
| Newlan Creek Dam | Dam | 1581 | Meagher | 46 38 12 N | 110 56 15 W |
| Newlan Creek Guard Station | Locale | 1738 | Meagher | 46 44 09 N | 110 50 58 W |
| Newlan Creek Reservoir | Reservoir | 1582 | Meagher | 46 38 13 N | 110 56 16 W |
| Newland Creek Quarry | Mine | 1717 | Meagher | 46 43 50 N | 110 51 13 W |
| Newlon (historical) | Locale | 590 | Richland | 47 38 55 N | 104 12 27 W |
| Newlon Cemetery | Cemetery | 608 | Richland | 47 39 09 N | 104 13 39 W |
| Newlon Junction | Populated Place | 596 | Richland | 47 39 31 N | 104 11 50 W |
| Newlon Post Office (historical) | Post Office | 590 | Richland | 47 38 55 N | 104 12 27 W |
| Newlon School | School | 591 | Richland | 47 38 56 N | 104 12 35 W |
| Newman Creek | Stream | | Mineral | 47 17 41 N | 115 17 59 W |
| Newman Creek | Stream | | Yellowstone | 45 38 41 N | 108 36 46 W |
| Newman Dam | Dam | 709 | Richland | 47 59 24 N | 105 11 02 W |
| Newman Hollow Creek | Stream | | Prairie | 46 46 25 N | 105 07 53 W |
| Newman Number 1 Dam | Dam | 861 | Garfield | 46 53 42 N | 106 29 14 W |
| Newman Peak | Summit | 1698 | Mineral | 47 16 17 N | 115 16 59 W |
| Newman School | School | 961 | Yellowstone | 45 45 31 N | 108 32 06 W |
| Newman Spring | Spring | 1042 | Cascade | 47 30 21 N | 111 29 23 W |
| Newmans Camp | Locale | 2018 | Powell | 46 27 09 N | 112 20 39 W |
| Newton | Populated Place | 885 | Yellowstone | 45 58 44 N | 108 03 30 W |
| Newton Camp (historical) | Locale | 1603 | Park | 45 04 05 N | 110 46 48 W |
| Newton Gulch | Valley | | Lincoln | 48 42 44 N | 116 02 46 W |
| Newton Gulch | Valley | | Ravalli | 46 09 50 N | 114 01 06 W |
| Newton Gulch Trail | Trail | 1388 | Lincoln | 48 41 05 N | 115 59 19 W |
| Newton Mountain | Summit | 1988 | Lincoln | 48 41 56 N | 115 58 30 W |
| Newton Mountain Snow Gage | Locale | 1701 | Lincoln | 48 42 10 N | 115 58 05 W |
| Newton Number 1 Dam | Dam | 760 | Dawson | 47 13 18 N | 104 57 14 W |
| Newton Reservoir | Reservoir | 661 | Valley | 48 01 09 N | 106 39 36 W |
| Newton School | School | 673 | Valley | 48 06 50 N | 106 35 55 W |
| Newtons Maternity Hospital (historical) | Hospital | 589 | Roosevelt | 48 08 40 N | 104 31 01 W |
| Newtown | Populated Place | 723 | Blaine | 48 28 58 N | 108 45 23 W |
| Nez Perce Camp | Locale | 1737 | Ravalli | 45 43 52 N | 114 28 54 W |
| Nez Perce Creek | Stream | | Jefferson | 46 06 38 N | 112 24 30 W |
| Nez Perce Creek | Stream | | Madison | 45 31 04 N | 112 24 42 W |
| Nez Perce Fork | Stream | | Ravalli | 45 48 05 N | 114 16 03 W |
| Nez Perce Gulch | Valley | | Beaverhead | 45 46 35 N | 112 51 44 W |
| Nez Perce Hollow | Valley | | Madison | 45 34 19 N | 112 30 39 W |
| Nez Perce Pass | Gap | 2004 | Ravalli | 45 42 59 N | 114 30 07 W |
| Nez Perce Ridge | Ridge | 2263 | Beaverhead | 45 44 28 N | 112 50 18 W |
| Nezperce Pass | Gap | 1928 | Ravalli | 45 43 13 N | 114 29 46 W |
| Niarada | Populated Place | 878 | Flathead | 47 48 51 N | 114 36 16 W |
| Niarada Cemetery | Cemetery | 881 | Sanders | 47 47 22 N | 114 36 51 W |
| Niarada Post Office | Post Office | 878 | Sanders | 47 48 50 N | 114 36 18 W |
| Niarada School (historical) | School | 878 | Sanders | 47 48 50 N | 114 36 18 W |
| NIARADA_CANAL_ Well | Well | 947 | Sanders | 47 30 53 N | 114 39 43 W |