This year, 2022, marks 60 years of recognizing and encouraging the conservation of America’s natural heritage through the National Natural Landmarks (NNL) Program. On May 18, 1962, Interior Secretary Stewart Udall established the program. Six decades later, with the support of landowners, stewards and local communities there are over 600 designated NNL sites. Please join us in celebrating 60 years of the National Natural Landmarks Program!
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The National Natural Landmarks Program (NNL) turns 60 in 2022 and the landmarks wanted to join in the celebration! Watch this short video of landmarks from around the nation wishing the NNL program happy anniversary.
Join the Celebration
We are excited about 60 years of partnering for conservation! We hope you will join us in the celebration of this milestone by learning more about National Natural Landmark (NNL) sites, visiting a nearby NNL, or helping spread the word through social media or hosting an event.
Resources for Celebration
The NNL program has a variety of educational and outreach materials to help engage visitors of all ages whether at your site, at home or in a classroom. For printed copies of these materials, please contact your regional NNL coordinator about availability.
Explore Anniversary Art
National Natural Landmark sites represent some of the best examples of the diverse biological and geological features that define our natural world. Each landmark is unique and offers a glimpse into the natural history of America.
Last updated: December 5, 2022