Mustang (from the Tibetan möntang (Wylie: smon-thang), Nepali: मुस्तांग Mustāṃg "fertile plain"), formerly Kingdom of Lo, is a remote and isolated region of the Nepalese Himalayas. The Upper Mustang was a restricted demilitarized area until 1992 which makes it one of the most preserved regions in the world, with a majority of the population still speaking traditional Tibetic languages. Tibetan culture has been preserved by the relative isolation of the region from the outside world.
The Upper Mustang comprise the northern two-thirds of Mustang District of Dhawalagiri Zone, Nepal. The southern third of the district is called Thak and is the homeland of the Thakali, who speak the Thakali language, and whose culture combines Tibetan and Nepalese elements. Life in Mustang revolves around tourism, animal husbandry and trade.
Mustang's status as a kingdom ended in 2008 when its suzerain Kingdom of Nepal became a republic. The influence of the outside world, especially China, is growing and contributing to rapid change in the lives of Mustang's people.