# List of National Natural Landmarks in Maine

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There are 14 National Natural Landmarks in Maine.
| Name | Date | Location | County | Ownership | Description |
| Appleton Bog Atlantic White Cedar Stand | 1984 | | Knox | private | A large peatland with continuous forest cover and well-developed hummock-and- hollow topography. |
| Carrying Place Cove Bog | 1980 | | Washington | state | A tombolo that has been eroded by the sea. |
| Colby-Marston Preserve | 1973 | | Kennebec | private | Northern sphagnum bog located in a deep kettle hole, the sphagnum mat exceeds a depth of 40 feet (12 m). |
| Crystal Bog | 1973 | 46°02′04″N 68°19′49″W﻿ / ﻿46.034472°N 68.330394°W﻿ / 46.034472; -68.330394﻿ (Crystal Bog) | Aroostook | private | An undisturbed, sphagnum bog considered one of the largest and finest in Maine. |
| Gulf Hagas | 1968 | 45°29′03″N 69°19′23″W﻿ / ﻿45.4841°N 69.323°W﻿ / 45.4841; -69.323﻿ (Gulf Hagas) | Piscataquis | federal (Appalachian Trail) | Waterfalls, cliffs, and growth of spruce-fir forest on the gorge walls give the site unusual scenic beauty. |
| The Hermitage | 1977 | | Piscataquis | federal (Appalachian Trail) | One of the few undisturbed, old-growth white pine stands remaining in New England. |
| Monhegan Island | 1966 | 43°45′44″N 69°19′13″W﻿ / ﻿43.762222°N 69.320278°W﻿ / 43.762222; -69.320278﻿ (Monhegan Island) | Lincoln | private | Dense, almost pure stands of red spruce and over 400 species of wildflower. |
| Mount Bigelow (Maine) | 1975 | 45°08′50″N 70°17′21″W﻿ / ﻿45.147277°N 70.289234°W﻿ / 45.147277; -70.289234﻿ (Mount Bigelow (Maine)) | Franklin, Somerset | state | Exceptionally scenic and wild, with some of the best summit views in the eastern United States. |
| Mount Katahdin | 1967 | 45°54′16″N 68°55′17″W﻿ / ﻿45.904354°N 68.921274°W﻿ / 45.904354; -68.921274﻿ (Mount Katahdin) | Piscataquis | state (Baxter State Park) | Kames, eskers, drumlins, kettleholes, moraines, and erratics provide a complete illustration of glacial geology. |
| New Gloucester Black Gum Stand | 1975 | 43°58′45″N 70°20′08″W﻿ / ﻿43.979177°N 70.33552°W﻿ / 43.979177; -70.33552﻿ (New Gloucester Black Gum Stand), | Cumberland | private | A small, remnant, forested swamp dominated mostly by virgin black gum. |
| No. 5 Bog and Jack Pine Stand | 1984 | 45°31′56″N 70°16′52″W﻿ / ﻿45.532352°N 70.280986°W﻿ / 45.532352; -70.280986﻿ (No. 5 Bog and Jack Pine Stand) | Somerset | state, private | The only large, intermontane peatland and one of the few expansive, virgin landscapes in the northeastern United States. |
| Orono Bog | 1973 | 44°52′09″N 68°43′32″W﻿ / ﻿44.86907°N 68.725668°W﻿ / 44.86907; -68.725668﻿ (Orono Bog) | Penobscot | municipal, private | A classic northern sphagnum bog. |
| Passadumkeag Marsh and Bogland | 1973 | 45°11′39″N 68°33′42″W﻿ / ﻿45.194092°N 68.561578°W﻿ / 45.194092; -68.561578﻿ (Passadumkeag Marsh and Bogland) | Penobscot | private | One of the largest, unspoiled wetlands in the state of Maine. |
| Penny Pond-Joe Pond Complex | 1973 | 44°24′27″N 69°49′40″W﻿ / ﻿44.407626°N 69.827820°W﻿ / 44.407626; -69.827820﻿ (Penny Pond-Joe Pond Complex) | Kennebec | private | Kettle hole bogs and ponds. |