List of National Natural Landmarks in Montana
Encyclopedia
From List of National Natural Landmarks, these are the National Natural Landmark
National Natural Landmark
The National Natural Landmark program recognizes and encourages the conservation of outstanding examples of the natural history of the United States. It is the only natural areas program of national scope that identifies and recognizes the best examples of biological and geological features in...

s in Montana
Montana
Montana is a state in the Western United States. The western third of Montana contains numerous mountain ranges. Smaller, "island ranges" are found in the central third of the state, for a total of 77 named ranges of the Rocky Mountains. This geographical fact is reflected in the state's name,...

. There are 10 in total, X are lakes or pond, Y are forests, Z are other.
Name Image Date Location County Description
1 Bug Creek Fossil Area McCone
McCone County, Montana
-Demographics:As of the census of 2000, there were 1,977 people, 810 households, and 596 families residing in the county. The population density was 1 people per square mile . There were 1,087 housing units at an average density of 0 per square mile...

Produced abundant remains of small, Cretaceous
Cretaceous
The Cretaceous , derived from the Latin "creta" , usually abbreviated K for its German translation Kreide , is a geologic period and system from circa to million years ago. In the geologic timescale, the Cretaceous follows the Jurassic period and is followed by the Paleogene period of the...

 mammals.
2 Bridger Fossil Area Carbon
Carbon County, Montana
-National protected areas:* Bighorn Canyon National Recreation Area * Custer National Forest * Gallatin National Forest -Economy:During the early history of Carbon County, coal mining was the predominant industry...

Contains fossils of Deinonychus antirrhopus.
3 Cloverly Formation Site Big Horn
Big Horn County, Montana
- National protected areas :* Bighorn Canyon National Recreation Area * Little Bighorn Battlefield National Monument- Economy :Coal Mining and Agriculture both play major roles in Big Horn County’s economy...

Contains early Cretaceous
Cretaceous
The Cretaceous , derived from the Latin "creta" , usually abbreviated K for its German translation Kreide , is a geologic period and system from circa to million years ago. In the geologic timescale, the Cretaceous follows the Jurassic period and is followed by the Paleogene period of the...

 vertebrate fossils.
4 Capitol Rock Carter
Carter County, Montana
-Demographics:As of the census of 2000, there were 1,360 people, 543 households, and 382 families residing in the county. The population density was -Demographics:...

A remnant of the once continuous blanket of Tertiary
Tertiary
The Tertiary is a deprecated term for a geologic period 65 million to 2.6 million years ago. The Tertiary covered the time span between the superseded Secondary period and the Quaternary...

 deposits that covered much of the Great Plains.
5 Glacial Lake Missoula
Glacial Lake Missoula
Glacial Lake Missoula was a prehistoric proglacial lake in western Montana that existed periodically at the end of the last ice age between 15,000 and 13,000 years ago...

Sanders
Sanders County, Montana
Sanders County is a county located in the U.S. state of Montana. As of 2010, the population was 11,413. Its county seat is Thompson Falls.-Geography:According to the U.S...

Contains the best examples of giant flood ripples in the North American continent.
6 Hell Creek Fossil Area Garfield
Garfield County, Montana
-Politics:Garfield County is a solidly Republican county. It might be the most Republican county in Montana and one of the most Republican in the nation....

The type locality for Tyrannosaurus rex, Ankylosaurus magniventris, and Brachychampsa fontana fossils.
7 Middle Fork Canyon Gallatin
Gallatin County, Montana
-National protected areas:* Gallatin National Forest * Yellowstone National Park -Demographics:As of the census of 2000, there were 67,831 people, 26,323 households, and 16,188 families residing in the county. The population density was 26 people per square mile . There were 29,489 housing units...

An outstanding example of a canyon cut across the grain of the geologic structure by a superposed stream.
8 Medicine Lake Site Sheridan
Sheridan County, Montana
-Demographics:As of the census of 2000, there were 4,105 people, 1,741 households, and 1,140 families residing in the county. The population density was 2.4 people per square mile . There were 2,167 housing units at an average density of 1.3 per square mile...

An exceptional example of the processes of continental glaciation, including till, outwash, eskers, kame
Kame
A kame is a geological feature, an irregularly shaped hill or mound composed of sand, gravel and till that accumulates in a depression on a retreating glacier, and is then deposited on the land surface with further melting of the glacier...

s, and terrace deposits.
9 Red Rock Lakes National Wildlife Refuge
Red Rock Lakes National Wildlife Refuge
Red Rock Lakes National Wildlife Refuge is a remote refuge located in the high altitude of the Centennial Valley, in the southwestern region of the U.S. state of Montana. Adjacent to Gallatin National Forest and near Yellowstone National Park, the refuge is an integral part of the Greater...

Beaverhead
Beaverhead County, Montana
-National protected areas:* Beaverhead National Forest * Big Hole National Battlefield* Nez Perce National Historical Park * Red Rock Lakes National Wildlife Refuge-History:...

A series of relatively undisturbed, high-altitude ecosystem types representative of pre-European settlement conditions.
10 Square Butte
Square Butte
Square Butte is the designation of a high voltage direct current transmission line in the USA between the Milton R. Young Power Plant near Center, North Dakota at and the Arrowhead converter station near Adolph, MN at . It was built by Minnkota Power Cooperative and Minnesota Power and went in...

Chouteau
Chouteau County, Montana
-National protected areas:* Lewis and Clark National Forest * Upper Missouri River Breaks National Monument -Economy:Chouteau County is the largest winter wheat producer for the state of Montana...

One of the best examples of banded magmatic rock in the United States.
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