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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22 Jan 2024Walton Lighthouse, Santa Cruz, California, USA
Pretty in pink
29 Nov 2024Mont-Saint-Michel, Normandy, France
1 Nov 2023Haut-Barr Castle
The grass looks greener on this side
Meet for lunch?
Have a merry little Christmas
Alpine grandeur
31 Aug 2024Rocks and sand in the Sahara, Algeria
Holding back the tide
Portable portals into our imagination
30 May 2025Little Pigeon River, Great Smoky Mountains National Park, United States
3 Apr 2025Wasson Peak, Saguaro National Park, Arizona, United States
16 Oct 2025Eurasian lynx
Crystal clear
A view that’s out of this world
18 Sep 2023Milky Way over Southwest Alentejo and Vicentine Coast Natural Park
28 Oct 2025The Gothic Gate in the Adršpach-Teplice Rocks, Czechia
How can we help at-risk animals?
Perfect, pastoral Palouse
12 Aug 2024World Elephant Day
7 Jun 2025Victoria Street in Edinburgh, Scotland
5 Nov 2024Guy Fawkes Night
Rocky Mountain run-off
12 Oct 2024World Migratory Bird Day
8 Apr 2024Llansteffan Castle, Carmarthenshire, Wales
One giant leap for mankind
Dare to delve into this dense swamp
18 May 2025International Museum Day
Dad on duty