List of National Natural Landmarks in Montana

From List of National Natural Landmarks, these are the National Natural Landmarks in Montana. There are 10 in total.

Name Image Date Location County Ownership Description
1 Bug Creek Fossil Area 1966 McCone federal (Charles M. Russell National Wildlife Refuge) Produced abundant remains of small, Cretaceous mammals.
2 Bridger Fossil Area 1973 Carbon federal (Bureau of Land Management) Contains fossils of Deinonychus antirrhopus.
3 Cloverly Formation Site 1973 Big Horn tribal land (Crow Nation) Contains early Cretaceous vertebrate fossils.
4 Capitol Rock 1976 Carter federal (Custer National Forest) A remnant of the once continuous blanket of Tertiary deposits that covered much of the Great Plains.
5 Glacial Lake Missoula 1966 Sanders private Contains the best examples of giant flood ripples in the North American continent.
6 Hell Creek Fossil Area 1966 Garfield mixed- state, private The type locality for Tyrannosaurus rex, Ankylosaurus magniventris, and Brachychampsa fontana fossils.
7 Middle Fork Canyon 1977 Gallatin federal (Bureau of Land Management) An outstanding example of a canyon cut across the grain of the geologic structure by a superposed stream.
8 Medicine Lake Site 1980 Sheridan federal (Medicine Lake National Wildlife Refuge) An exceptional example of the processes of continental glaciation, including till, outwash, eskers, kames, and terrace deposits.
9 Red Rock Lakes National Wildlife Refuge 1966 Beaverhead federal A series of relatively undisturbed, high-altitude ecosystem types representative of pre-European settlement conditions.
10 Square Butte (mountain) 1980 Chouteau federal (Bureau of Land Management) One of the best examples of banded magmatic rock in the United States.
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