List of National Natural Landmarks in Indiana

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From List of National Natural Landmarks, these are the National Natural Landmarks in Indiana.[1]

Name Image Date Location County Description
1 Big Walnut Creek 1968 Putnam Contains one of the few stands in Indiana where beech, sugar maple, and tulip poplar grow on alluvial Genesee soil.
2 Cabin Creek Raised Bog 1974 Randolph A fen that supports a very rich flora.
3 Calvert and Porter Woods 1974 Montgomery One of the finest near-virgin remnant forests in the Tipton Till Plain of central Indiana.
4 Cowles Bog Cowles Bog 1965 Chesterton41°38′15″N 87°05′32″W / 41.6375°N 87.092222°W / 41.6375; -87.092222 (Cowles Bog) Porter Part of the Indiana Dunes National Lakeshore, this is the sole remaining remnant of the Central Dunes where Henry Chandler Cowles performed his pioneering field studies of plant succession and species diversity.
5 Davis-Purdue Agriculture Center Forest 1974 Randolph The best old growth oak-hickory forest on the Tipton Till Plain.
6 Donaldson Cave System and Woods 1972 Lawrence Spring Mill State Park-A stream flows from a cave through the bottom of a gorge.
7 Dunes Nature Preserve Indiana Dunes-State-Park-02.jpg 1974 Porter41°40′N 87°02′W / 41.66°N 87.04°W / 41.66; -87.04 (Dunes Nature Preserve) Porter Indiana Dunes State Park-Inter-dunal wetlands and blowouts along Lake Michigan
8 Fern Cliff Preserve 1980 Putnam Contains exceptional occurrences of mosses and liverworts, including a noteworthy number of rare species.
9 Hanging Rock and Wabash Reef 1986 Wabash Contains an impressive natural exposure of fossilized coral reef dating from the Silurian Period some 400 million years ago. The limestone reef deposit rises 75 feet (23 m) above the river and is being undercut by it, giving the site its "hanging" appearance.
10 Harrison Spring Harrison Spring 1980 Harrison A portion of the water that feeds the spring originates from Indian Creek, and then goes underground until it reaches the spring area. It produces at least 3 million gallons of water a day at an average of 18,000 gpm, enough to supply water to an average town of 12,000
11 Hemmer Woods 1973 Gibson Original southwestern Indiana oak-hickory forest.
12 Hoosier Prairie Hoosier Prairie 1974 Griffith41°31′22″N 87°27′27″W / 41.522683°N 87.457572°W / 41.522683; -87.457572 (Hoosier Prairie) Lake Part of the Indiana Dunes National Lakeshore - Wetland prairie remnant of sand plains, sedge meadows, and marshes.
13 Hoot Woods 1973 Owen A relatively undisturbed, isolated beech-maple forest in which near climax conditions prevails.
14 Kramer Woods Indiana
15 Marengo Cave Marengo Cave formations.JPG 1984 Crawford One of only four show caves in Indiana, public tours of the cave have been given since 1883. Tours commenced just days after the cave's discovery by two school children.
16 Meltzer Woods 1973 Shelby Contains two contrasting forest types and exceptionally large individuals of several tree species.
17 Officer's Woods 1974 Jefferson One of the finest remnants of beech-maple forest south of the Wisconsin-age glacial boundary in Indiana.
18 Ohio Coral Reef 1966 Floyd A classic example of a Silurian and Devonian coral community. Extends into Kentucky.
19 Pine Hills Natural Area 1968 Montgomery Shades State Park- Deep gorges, the result of the last glacial meltwaters.
20 Pinhook Bog Pinhook Bog 1965 LaPorte Indiana Dunes National Lakeshore-bog formed from a postglacial kettle moraine left behind about 14,000 years before the present by the melting of the ice sheet during the end of the Wisconsin glaciation. The acidic bog is noted for pitcher plants and other wetland species.
21 Pioneer Mother's Memorial Forest 1974 Orange One of the best examples of an original, undisturbed pre- settlement forest in Indiana.
22 Portland Arch Nature Preserve Portland Arch NNL Fountain County Indiana.JPG 1973 Fountain The preserve encompasses the wooded valleys, ravines and rocky cliffs around the lowest section of Bear Creek. The name comes from a natural sandstone bridge carved by a small tributary of Bear Creek.
23 Rise at Orangeville 1972 Orange Orangeville Rise of Lost River Nature Preserve is the second largest spring in the state of Indiana.
24 Rocky Hollow Falls Canyon Nature Preserve 1974 Parke Rocky Hollow and Falls Canyon are two of a series of canyons cut into the sandstone of Turkey Run.
25 Shrader-Weaver Woods 1974 Fayette Shrader-Weaver Nature Preserve - Old growth beech-maple forest with a pioneer homestead. Includes tulip, wild black cherry and black walnut trees.
26 Tamarack Bog 1973 LaGrange Tamarack Bog Nature Preserve, Pigeon River Fish and Wildlife Area - Large tamarack tree swamp
27 Tolliver Swallowhole 1972 Orange An extraordinary example of the disappearing stream aspect of karst topography.
28 Wesley Chapel Gulf 1972 Orange Probably the largest sinkhole in Indiana.
29 Wesselman Woods Nature Preserve 1973 Vanderburgh Wesselman Woods Nature Preserve - southern old growth forest
30 Wyandotte Caves Wyandotte Cave IN.jpg 1972 Crawford O'Bannon Woods State Park/Harrison-Crawford State Forest - Wyandotte caves began to form in the Pliocene Era, about 2 million years ago. Like most of Southern Indiana's caves, the caves were formed when water dissolved limestone, causing hollow caves to form.


  1. ^ "National Registry of Natural Landmarks" Retrieved 2009-12-29.