Mount Mitchell State Park located in North Carolina was designated an NNL on May 30, 1974. Pictured is a photograph from the original evaluation.
NPS photo
The NNL program was established in 1962 with the first site designations occuring in 1964. Since that time, individual NNL sites have reached their Golden Anniversary, or 50 years, of landmark designation. The milestone is remarkable in that it recognizes 50 years of voluntary conservation, committment, and partnership with landowners and managers of these NNL sites.
In 2024 we recognize and celebrate the Golden Anniversary of 71 NNL sites. These NNLs were officially designated when Secretary of the Interior, Rogers C.B. Morton, signed two batches of designation memos, the first on May 30, 1974 and the latter on December 2, 1974.
Sites Designated May 30, 1974
State
Landmark
Secretary Approval Date
Alabama
Beaverdam Creek Swamp
5/30/1974
Alabama
Dismals
5/30/1974
Alabama
Mobile-Tensaw River Bottomlands
5/30/1974
Arizona
Onyx Cave
5/30/1974
California
Anza-Borrego Desert State Park
5/30/1974
California
Nipomo Dunes-Point Sal Coastal Area
5/30/1974
California
San Felipe Creek Area
5/30/1974
Georgia
Camp E. F. Boyd Natural Area
5/30/1974
Georgia
Lewis Island Tract
5/30/1974
Idaho
Cassia Silent City Of Rocks
5/30/1974
Illinois
Funks Grove
5/30/1974
Illinois
LaRue-Pine Hills Ecological Area
5/30/1974
Indiana
Hoosier Prairie
5/30/1974
Indiana
Pioneer Mothers Memorial Forest
5/30/1974
Indiana
Shrader-Weaver Woods
5/30/1974
Kentucky
Henderson Sloughs
5/30/1974
Massachusetts
Hawley Bog
5/30/1974
Michigan
Dukes Research Natural Area
5/30/1974
New Mexico
Fort Stanton Cave
5/30/1974
New Mexico
Torgac Cave
5/30/1974
New York
Iona Island Marsh
5/30/1974
North Carolina
Green Swamp
5/30/1974
North Carolina
Long Hope Creek Spruce Bog
5/30/1974
North Carolina
Mount Jefferson State Natural Area
5/30/1974
North Carolina
Mount Mitchell State Park
5/30/1974
North Carolina
Nags Head Woods and Jockey's Ridge
5/30/1974
North Carolina
Piedmont Beech Natural Area
5/30/1974
North Carolina
Pilot Mountain
5/30/1974
North Carolina
Stone Mountain
5/30/1974
Rhode Island
Ell Pond
5/30/1974
South Carolina
Congaree River Swamp
5/30/1974
Tennessee
May Prairie
5/30/1974
Tennessee
Piney Falls
5/30/1974
Okefenokee Swamp, located in Georgia, was designated an NNL on December 2, 1974. Pictured is a photograph from the original evaluation.
NPS Photo
Sites Designated December 2, 1974
State
Landmark
Secretary Approval Date
Arizona
Canelo Hills Cienega
12/2/1974
Arkansas
Big Lake Natural Area
12/2/1974
Arkansas
White River Sugarberry Natural Area
12/2/1974
Florida
Devil's Millhopper
12/2/1974
Florida
Emeralda Marsh
12/2/1974
Florida
Osceola Research Natural Area
12/2/1974
Florida
Paynes Prairie
12/2/1974
Florida
San Felasco Hammock
12/2/1974
Georgia
Okefenokee Swamp
12/2/1974
Indiana
Cabin Creek Raised Bog
12/2/1974
Indiana
Calvert and Porter Woods
Nature Preserve
12/2/1974
Indiana
Davis-Purdue Agricultural Center Forest
12/2/1974
Indiana
Dunes Nature Preserve
12/2/1974
Indiana
Officer's Woods
12/2/1974
Indiana
Rocky Hollow-Falls Canyon
Nature Preserve
12/2/1974
Maryland
Belt Woods
12/2/1974
Missouri
Cupola Pond
12/2/1974
Ohio
Arthur B. Williams Memorial Woods
12/2/1974
Ohio
Blacklick Woods
12/2/1974
Ohio
Crall Woods
12/2/1974
Ohio
Fort Hill State Memorial
12/2/1974
Ohio
Goll Woods
12/2/1974
Ohio
Hazelwood Botanical Preserve
12/2/1974
Oklahoma
Devil's Canyon
12/2/1974
Oklahoma
McCurtain County Wilderness Area
12/2/1974
Pennsylvania
Reynolds Spring and Algerine
Swamp Bogs
12/2/1974
Pennsylvania
Tannersville Cranberry Bog
12/2/1974
Tennessee
Arnold Engineering Development
Center Natural Areas
