National Natural Landmarks (U.S. National Park Service)
Jul 22, 2025 · The National Natural Landmarks Program recognizes and encourages the voluntary conservation of sites that contain outstanding biological and geological resources.
National Natural Landmarks Directory - U.S. National Park Service
Jun 17, 2025 · There are currently 606 designated National Natural Landmark sites within 48 states, American Samoa, Guam, Puerto Rico, and the U.S. Virgin Islands. Louisiana and …
Visit Astonishing National Natural Landmarks - U.S. National Park …
Dec 3, 2025 · National Natural Landmarks (NNLs) are natural areas that contain significant examples of the nation's biological and geological features. The 600+ NNLs are designated by …
National Natural Landmarks Program - U.S. National Park Service
Sep 11, 2025 · The National Natural Landmarks Program (NNL) recognizes and encourages the conservation of sites that contain outstanding biological and geological resources, regardless …
National Natural Landmarks - U.S. National Park Service
What is a National Natural Landmark (NNL)? It is a natural area that has been designated by the Secretary of the Interior in recognition that the site contains significant examples of the …
What We Do - National Natural Landmarks Program (U.S. National …
Sep 11, 2025 · The National Park Service administers the program, reports on the condition of the NNLs, acts as an advocate for the protection of designated sites, and raises public awareness …
National Natural Landmarks - U.S. National Park Service
The Secretary of Interior has designated over 600 sites as National Natural Landmarks in recognition of their outstanding biological or geological features. They illustrate the diversity of …
NNL Mountains - National Natural Landmarks (U.S. National Park …
MountainsLast updated: January 28, 2022
NNL Caves - National Natural Landmarks (U.S. National Park Service)
Dec 3, 2025 · This article shines a virtual flashlight on some truly amazing inhabitants from National Park System and NNL caves across the country. It is a celebration of the amazing …
Celebrating 60 years - National Natural Landmarks (U.S. National …
National Natural Landmarks Celebrating 60 years ... Last updated: April 15, 2025