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

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

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Mar. 19, 2026Short-beaked echidna, Adelaide Hills, Australia
Sep. 25, 2024Sequoia National Park, California, USA
Jan. 9, 2025Sossusvlei sand dunes, Namib desert, Namibia
Scenic Mount Michener
Dec. 18, 2023Capitol Reef National Park, Utah
Jul. 4, 2025Skipper butterfly on an Echinacea flower
Red rock country
Blue as far as the eye can see
May 5, 2024Kalaloch Tree of Life, Olympic National Park, Washington, US
Aug. 8, 2025The Three Musketeers Falls at Iguazú Falls, Argentina
Swinging over Munich
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An endless stretch of sky
Is it green with envy?
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Straight out of a fairytale
Lest we forget
Feb. 28, 2025Bighorn sheep in Valley of Fire State Park, Nevada, United States