NNL Stories

a lake surrounded by red tinged mountains
Summit Lake National Natural Landmark in Clear County, Colorado

Photo by D.Miller

Each National Natural Landmarks adds to the story of our nation's natural history. Explore the stories of fossils, swamps, caves, craters, volcanoes, and more below.
Showing results 1-10 of 22

    • Offices: National Natural Landmarks Program
    two seals on beach with ocean in background

    Secretary of the Interior, Deb Haaland, designates new National Natural Landmark site in December 2024.

    • Offices: Geologic Resources Division, National Natural Landmarks Program
    Photo of a brass commemorative plaque.

    John Boyd Thacher State Park National Natural Landmark in eastern New York is one of the newest NNLs. It is notable for its extensive middle Paleozoic stratigraphic section and the many invertebrate fossils found in the rocks, both of which have been studied since the early 19th century, making it a noteworthy scientific and historic site.

  • National Natural Landmarks Program

    Southern Texas Desert Oasis

    • Offices: National Natural Landmarks Program
    A spring water pool of shallow clear wtaer surrounded by dry vegetation

    Secretary of the Interior, Deb Haaland, designates new National Natural Landmark site in July 2024.

  • View of water surrounded by marsh grass with trees in background

    We invite you to explore the 2023 Landmark Highlights for a sampling of activities at NNL sites across the country throughout Fiscal Year 2023.

    • Type: Series
    Green lake in foreground and waterfall in background

    Each year the National Natural Landmarks (NNL) Program produces the Landmark Highlights which highlights a sampling of conservation successes and partnerships at NNL sites nationwide.

  • Cliff with tree covered mountains in foreground and cloudy sky in background

    Secretary of the Interior, Deb Halland, designates two new National Natural Landmark sites in December 2023.

  • view of river valley

    Many multi-partner collaborations in the Pacific Northwest are underway to tackle management of the highly visited Columbia River Gorge.

  • Rocks and trees surrounded by fog

    We invite you to explore the 2022 Landmark Highlights for a sampling of activities at NNL sites across the country throughout Fiscal Year 2022

  • Yellow vegetation in foreground and mountain in background

    We invite you to explore the 2021 Landmark Highlights for a sampling of activities at NNL sites across the country throughout Fiscal Year 2021.

    • Offices: Geologic Resources Division, National Natural Landmarks Program
    dinosaur skull on display outdoors

    The National Natural Landmarks (NNL) Program includes dozens of important fossil sites throughout the United States, a handful are recognized for significant dinosaur fossils.

Last updated: March 22, 2022

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