INTERNATIONAL DAY

International Mountain Day

Mountains are crucial for biodiversity and climate; they are our planet's lifelines. Let’s protect these majestic giants.

DEC11

Friday, December 11Every year on December 11

days to go

Roots: Designated by the United Nations; first observed in 2003
Vibe: Celebratory and conservation-focused
Also on Dec 11: UNICEF Birthday · App Day · Noodle Ring Day
Hashtag: #InternationalMountainDay

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3 ways to celebrate

AT HOME

Watch a mountain film

Stream a mountain documentary and plan a future hike from the couch.

WITH FRIENDS

Hit the trail

Gather friends for a hike, big or small, and enjoy the view.

AT WORK OR SCHOOL

Share mountain photos

Ask coworkers to share their favorite mountain photos on the board.

Plan ahead

International Mountain Day is observed on December 11 every year. Here is where it lands for the next ten years, handy for planners, marketers and party people.

2026Fri, Dec 11this year

2027Sat, Dec 11

2028Mon, Dec 11

2029Tue, Dec 11

2030Wed, Dec 11

2031Thu, Dec 11

2032Sat, Dec 11

2033Sun, Dec 11

2034Mon, Dec 11

2035Tue, Dec 11

2036Thu, Dec 11

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Fast facts

About 1.2 billionPeople live in mountain areas

Nearly 2 billionPeople depend on water from mountains

The story

International Mountain Day was established to raise awareness about the importance of mountains in our lives. Celebrated on December 11 each year, this day underscores the significance of these majestic landscapes and the unique ecosystems they harbor. Mountains are not only breathtakingly beautiful but also vital for biodiversity, water resources, and climate regulation. They are home to about 1.2 billion people worldwide.

Read the full story

Mountains face numerous challenges due to climate change, deforestation, and urbanization. The UN's initiative aims to promote sustainable development in mountainous regions while advocating for the protection of these ecosystems. From the towering Rockies in North America to the majestic Himalayas in Asia, mountains are home to diverse flora and fauna, many of which are endangered. Mountain communities often depend on these ecosystems for their livelihoods, making their preservation crucial.

On this day, individuals and communities are encouraged to reflect on the role mountains play in their lives. Whether it’s through hiking, photography, or conservation efforts, there are countless ways to engage with these natural wonders. One can participate in local events, support conservation groups, or simply enjoy the tranquility that mountains provide. As highlighted by numerous studies, maintaining healthy mountain ecosystems is essential for global biodiversity and climate resilience.

As we celebrate International Mountain Day, let us remember that our actions today will determine the future of these precious landscapes. By raising awareness and promoting conservation, we can ensure that mountains remain vibrant for generations to come. Join us in this global effort to honor and protect our planet’s mountainous regions. Together, we can make a difference.

Did you know?

Mountain Heights

Mount Everest, the world’s tallest mountain, stands at 29,032 feet (8,848 meters) above sea level.

Biodiversity Hotspots

Mountain ecosystems are home to 25% of all terrestrial biodiversity.

Cultural Significance

Many cultures and religions revere mountains, considering them sacred spaces.

Extreme Weather

Mountains can experience dramatic weather changes, making them challenging environments for life.

Unique Ecosystems

Mountain ecosystems often contain unique species not found anywhere else on Earth.

Tourism Impact

Mountain tourism is a significant part of the economy in many countries, providing jobs and supporting local businesses.

Mountains and Water

Mountains are referred to as 'water towers' because nearly 2 billion people depend on their water.

Around the world

Every culture celebrates a little differently.

USNorth AmericaHome to majestic ranges like the Rocky Mountains and Sierra Nevada, North America celebrates its mountain heritage every year.
INAsiaThe Himalayas, home to the world’s highest peaks, are crucial for millions, providing water and livelihood.
AUAustraliaThe Great Dividing Range is a significant mountain range that influences the region’s biodiversity and climate.
ZAAfricaThe Drakensberg Mountains play a vital role in water supply and biodiversity for southern Africa.
EUEuropeThe Alps are one of Europe’s most famous mountain ranges, attracting millions of visitors for skiing and hiking.
CLSouth AmericaThe Andes, the longest mountain range in the world, is essential for its unique ecosystems and cultural heritage.