International Mountain Day Dec. 11, 2023

Peek at your calendars! December 11 is International Mountain Day, a special day designated by the United Nations General Assembly back in 2003. The theme for this year"s commemoration is "Restoring mountain ecosystems," connecting with the UN"s Decade on Ecosystem Restoration.

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Today in History

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Dec. 11, 2024International Mountain Day
Dec. 11, 2025International Mountain Day

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What are they celebrating?
Sep. 15, 2025Cape Breton Highlands National Park in Nova Scotia
Sep. 22, 2024Autumn equinox
A fox in the dunes
May 27, 2025Mona Vale rockpool, Sydney, Australia
Rugged coasts and temperate rainforests
Sanctuary among the trees
May 4, 2024Star Wars Day
‘Night shining’ clouds
Jul. 25, 2024Great Smoky Mountains National Park, Tennessee, USA
Trails leading to the gateway of nature.
Sep. 27, 2024Basilica of Santa Maria della Salute, Venice, Italy
A beacon in the golden light
Aug. 29, 2023Zelenci Nature Reserve, Slovenia
Jan. 3, 2026J.R.R. Tolkien Day
Sep. 18, 2025Dunquin Pier, County Kerry, Ireland
May 21, 2026International Tea Day
Out of this world
Feb. 17, 2024Sassnitz lighthouse, Rügen, Mecklenburg-Western Pomerania
Nothing says ‘San Francisco’ quite like...
Aug. 2, 2025Petroglyphs near Fruita in Capitol Reef National Park, Utah, United States
Jun. 6, 2024The 80th anniversary of D-Day
Mar. 19, 2025A black heron canopy hunting in Botswana
Nov. 1, 2024Vineyards in Varnhalt, Black Forest, Germany
Pretty in pink
Pretty in pink
Apr. 14, 2025Atlantic spotted dolphins
Is it green with envy?
Aug. 27, 2025World Lake Day
History awaits atop the hill