International Mountain Day 11 Dec 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.

© Hung Chung Chih/Shutterstock

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Today in History

International Mountain Day
11 Dec 2024International Mountain Day
11 Dec 2025International Mountain Day

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All is calm
Wind powered ice racing
20 Nov 2024Mount Assiniboine Provincial Park, British Columbia, Canada
16 Dec 2025Handmade gnomes at a Christmas market
Passing with flying colours
13 Feb 2025Lake Tyrrell, Victoria, Australia
Tis the season for travel
14 Jan 2026The staircase of the Fortress of Palamidi, Nafplio, Greece
31 Oct 2025Happy Halloween!
We can all just get along
18 Jan 2026Winnie the Pooh Day
The fjords of Italy
Connecting the dots
Aug 20, 2023International Lighthouse Weekend
21 Apr 2024London Marathon
23 Oct 2025International Day of the Snow Leopard
18 Feb 2026Przewalskis horses
16 Apr 2026Skagit Valley Tulip Festival
9 Sep 2025Eurasian red squirrel, Switzerland
9 Jul 2024Talampaya National Park, Argentina
Beauty by the bay
8 Dec 2024Notre-Dame reopens
30 Dec 2023Daiichi Tadami River Bridge, Fukushima, Japan
19 Sep 2023Splügen Pass, Switzerland
A magical resting place
25 Jun 2025Glastonbury Festival begins
29 Mar 2025Superbloom in Carrizo Plain National Monument, California, United States
4 Mar 2025Happy Fat Tuesday!
30 Nov 2024Saint Andrews Day
11 Oct 2025World Migratory Bird Day