Indiana's National
Natural Landmarks

EcoIndiana: National Natural Landmarks


According to the National Park Service, "The National Natural Landmarks Program recognizes and encourages the conservation of sites that contain outstanding biological and geological resources. Sites are designated by the Secretary of the Interior for their condition, illustrative character, rarity, diversity, and value to science and education. The National Park Service administers the program and works cooperatively with landowners, managers and partners to promote conservation and appreciation of our nation's natural heritage."

Indiana has at least 30 National Natural Landmarks. Some are open to the public and others are not.


Big Walnut Creek

Putnam County. Designated in 1968.

National Park Service Description: Big Walnut Creek is a branch of the Eel River formed as a result of glacial melt and postglacial water erosion. The site contains one of the few stands in Indiana where beech, sugar maple, and tulip poplar grow on alluvial Genesee soil and includes relict species of a postglacial forest that occupied the area 5,000 to 6,000 years ago.

Note: A portion of this property is called Fortune Woods.

 

Cabin Creek Raised Bog

Randolph County. Designated in 1974.

 

Calvert & Porter Woods

Montgomery County. Designated in 1974.

 

Cowles Bog

Porter County. Designated in 1965.

 

Davis-Purdue Ag Center Forest

Randolph County. Designated in 1974.

 

Donaldson Cave System & Woods

Lawrence County. Designated in 1972.

Note: Contained within Spring Mill State Park.

 

Dunes Nature Preserve

Porter County. Designated in 1974.

Note: Contained within Spring Mill State Park.

 

Fern Cliff

Putnam County. Designated in 1980.

 

Hanging Rock and Wabash Reef

Wabash County. Designated in 1986.

 

Harrison Spring

Harrison County. Designated in 1980.

 

Hemmer Woods

Gibson County. Designated in 1973.

 

Hoosier Prairie

Lake County. Designated in 1974.

 

Hoot Woods

Owen County. Designated in 1973.

 

Kramer Woods

Spencer County. Designated in 1973.

 

Marengo Cave

Crawford County. Designated in 1984.

 

Meltzer Woods

Shelby County. Designated in 1973.

 

Officer's Woods

Jefferson County. Designated in 1974.

 

Ohio Coral Reef

Clark County. Designated in 1966.

 

Pine Hills Natural Area

Montgomery County. Designated in 1968.

 

Pinhook Bog

LaPorte County. Designated in 1965.

 

Pioneer Mothers Memorial Forest

Orange County. Designated in 1974.

 

Portland Arch Nature Preserve

Fountain County. Designated in 1973.

 

Rise at Orangeville

Orange County. Designated in 1972.

 

Rocky Hollow Falls Canyon Nature Preserve

Parke County. Designated in 1974.

Note: Contained within Turkey Run State Park.

 

Shrader-Weaver Woods

Fayette County. Designated in 1974.

 

Tamarack Bog

Lagrange County. Designated in 1973.

 

Tolliver Swallowhole

Orange County. Designated in 1972.

 

Wesley Chapel Gulf

Orange County. Designated in 1972.

 

Wesselman Woods

Vanderburgh County. Designated in 1973.

 

Wyandotte Caves

Crawford County. Designated in 1972.