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The National Natural Landmarks ( NNL) Program recognizes and encourages the conservation of outstanding examples of the natural history of the United States. [ 1] It is the only national natural areas program that identifies and recognizes the best examples of biological and geological features in both public and private ownership.
Two of the NPS's national monuments, Grand Canyon–Parashant and Avi Kwa Ame, are not official units because they overlap with Lake Mead National Recreation Area. Management practices vary across agencies and sites according to their missions, the size or type of protected place, and legal authorization.
This is a list of National Historic Landmarks in U.S. commonwealths and territories, associated states, and foreign states. Included are lists of National Historic Landmarks (NHLs) and of National Park Service administered areas in U.S. Commonwealths and territories, U.S.-associated states, and in the foreign state of Morocco. There are 23 NHLs ...
This is a list of National Historic Landmarks in Ohio and other landmarks of equivalent landmark status in the state. The United States' National Historic Landmark (NHL) program is operated under the auspices of the National Park Service, and recognizes structures, districts, objects, and similar resources according to a list of criteria of national significance. [6]
3. Bergen-Byron Swamp. March 1964. Bergen 43°05′29″N 78°01′36″W. / 43.091456°N 78.026533°W / 43.091456; -78.026533 ( Bergen-Byron Swamp) Genesee. Private. A 2,000-acre (8.1 km 2) swamp that was the first National Natural Landmark to be designated. It is managed by the Bergen Swamp Preservation Society.
From List of National Natural Landmarks, these are the National Natural Landmarks in California. There are 37 in total. [1] Algodones Dunes. Amboy Crater. Anza-Borrego. Audubon Canyon. Año Nuevo State Park. Black Chasm Cave.
These landmarks were designed between 1967 and 1987. They vary in size between 44 and 53,531 acres (18 and 21,663 hectares). The National Natural Landmarks Program is administered by the National Park Service, a branch of the Department of the Interior. The National Park Service determines which properties meet NNL criteria and, after notifying ...
Natural Landmarks in Florida range from 593 to 14,000 acres (240.0 to 5,665.6 ha; 0.9 to 21.9 sq mi) in size. Owners include private individuals and several state and federal agencies. The National Natural Landmarks Program is administered by the National Park Service, a branch of the Department of the Interior. The National Park Service ...