Upper Mustang, formerly known as Kingdom of Lo, is the upper part (northern areas) of the Mustang District in the Gandaki Province of Nepal. The Upper Mustang was a restricted kingdom 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.
The Upper Mustang comprises the northern two-thirds of the Mustang District of Gandaki Province, Nepal. It consists of three rural municipalities namely Lo Manthang, Lo-Ghekar Damodarkunda, and Varagung Muktichhetra.