International Mountain Day 2021 celebrated on December 11
- Every year the International Mountain Day (IMD) is observed on December 11.
- Theme for 2021 IMD is ‘Sustainable mountain tourism’.
- United Nations had declared 2002 as the UN International Year of Mountains.
- The International Day was celebrated for the first time in 2003.
- The day aims to encourage sustainable development in mountains; to create awareness about the importance of mountains to life; to highlight the opportunities and constraints in mountain development; and to build alliances that will bring positive change to mountain peoples and environments around the world.