Recently designated National Natural Landmarks include the following:
December 2023
- Glenwood Caverns and Iron Mountain Hot Springs, Colorado
- John Boyd Thatcher State Park, New York
View the Press Release for these designations
Learn more in the article New Landmarks Reveal Stories Millions of Years in the Making, Below and Above Ground
January 2021
Learn more in the article New Landmarks Reveal Stories Millions of Years in the Making, Below and Above Ground
January 2021
View the Press Release for these designations
Learn more in the article High Plateaus, Smelly Caverns, and Coastal Dunes, Meet the Nation’s Newest Natural Landmarks
- Albany Pine Bush, NY
- Garden Park Fossil Area, CO (boundary expansion)
- Wade Tract Preserve, GA
- Zumwalt Prairie, OR
October 2012
- Big Spring Creek, CO
May 2012
- Ice Mountain, WV
- Lake Shasta Caverns, CA
June 2011
- Barfoot Park, AZ
- Hanging Lake, CO
- Kahlotus Ridgetop, WA
- Morrison-Golden Fossil Areas, CO (a boundary expansion of the original Morrison Fossil Area)
- Round Top Butte, OR
- The Island, OR
January 2009
- Big Bone Lick, KY
- Cave Without A Name, TX
- Chazy Fossil Reef, NY/VT
- Nottingham Park Serpentine Barrens, PA
October 2006
- Irvine Ranch, CA
Last updated: December 13, 2023