| Name | Image | Date | Location | County | Ownership | Description |
| Ancient River Warren Channel |  | 1966 | 45°35′6″N 96°49′48″W / 45.58500°N 96.83000°W / 45.58500; -96.83000 | Big Stone | mixed- state, private | A channel cut by the Ancient River Warren during the Ice Age. Extends into South Dakota. |
| Cedar Creek Natural History Area |  | 1975 | 45°24′7.29″N 93°11′57.85″W / 45.4020250°N 93.1994028°W / 45.4020250; -93.1994028 | Anoka, Isanti | mixed- state, private | A relatively undisturbed area where tall grass prairie, eastern deciduous forest and boreal coniferous forest biomes meet. |
| Itasca Natural Area |  | 1975 | 47°11′40.21″N 95°9′55.22″W / 47.1945028°N 95.1653389°W / 47.1945028; -95.1653389 | Clearwater | state (Itasca State Park) | Contains some of the finest remaining stands of virgin red pine, spruce- balsam fir, and maple-basswood-aspen forest. |
| Keeley Creek Natural Area | | 1965 | 47°47′23.5″N 91°42′22.52″W / 47.789861°N 91.7062556°W / 47.789861; -91.7062556 | Lake | federal (Superior National Forest) | A large tract of undisturbed mixed pine and black spruce forest. |
| Lac la Croix Research Natural Area | | 1980 | 48°20′N 92°7′W / 48.333°N 92.117°W / 48.333; -92.117 | St. Louis | federal (Superior National Forest) | Old-growth virgin pine forests. |
| Lake Agassiz Peatlands Natural Area | | 1965 | 48°02′13″N 93°28′30″W / 48.037°N 93.475°W / 48.037; -93.475 | Koochiching | state | An example of the extensive peatlands occupying the bed of ancient glacial Lake Agassiz. |
| Pine Point Research Natural Area | | 1975 | 47°7′52.83″N 94°33′19.09″W / 47.1313417°N 94.5553028°W / 47.1313417; -94.5553028 | Cass | federal (Chippewa National Forest) | Contains undisturbed stands of red and mixed pine. |
| Upper Red Lake Peatland |  | 1975 | 48°11′34″N 94°30′43″W / 48.19278°N 94.51194°W / 48.19278; -94.51194 | Beltrami | mixed- federal, state, private, native | One of the largest peatlands remaining in the coterminous United States. |
