International Mountain Day Dec. 11, 2023

International Mountain Day

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.

© Hung Chung Chih/Shutterstock

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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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May 26, 2024Methow Valley, North Cascades, Washington
Mar. 11, 2024Koala sleeping in a eucalyptus tree, Australia
Feb. 19, 2026Dragons Eye, Uttakleiv Beach, Norway
Dec. 3, 2023Vermilion Cliffs National Monument
Jan. 14, 2025Village of Zahara de la Sierra, Cadiz, Spain
Apr. 4, 2025Taktsang Palphug Monastery, Bhutan
Jul. 17, 2024Rothenburg ob der Tauber, Bavaria, Germany
Jun. 25, 2025Glastonbury Festival begins
Feb. 18, 2025The Great Blue Hole, Belize
Feb. 23, 2024Haghartsin Monastery, Armenia
Nov. 5, 2025Peña Roya beech forest, Moncayo Natural Park, Aragon, Spain
When being in a rut is OK
May 7, 2024A duckling swimming in a water meadow, Suffolk, England
A convocation of eagles assembles
Aug. 19, 2025Vancouver Island, British Columbia
Jan. 28, 2026Whanganui National Park, Retaruke, New Zealand
Oct. 4, 2024Nuit Blanche Toronto
Jun. 24, 2024Kelimutu, Flores, Indonesia
Nov. 5, 2024Lençóis Maranhenses National Park, Brazil
A time-worn medieval marvel
Jun. 2, 2024Annas hummingbird
May 22, 2025International Day for Biological Diversity
Nov. 13, 2023Serra de Tramuntana, Balearic Islands, Majorca, Spain
Aug. 8, 2025The Three Musketeers Falls at Iguazú Falls, Argentina
A mountaintop cultural wonder
Jul. 5, 2024Daintree Rainforest and Noah Beach, Queensland, Australia
Sep. 16, 2024Wallabies at sunrise, Australia
Nov. 13, 2025Distillery Winter Village
Sep. 11, 2025Monfragüe National Park, Cáceres, Extremadura, Spain
Something to ‘bee’ thankful for