Upper Mustang is very popular trekking in the Annapurna reason in Nepal since the Home ministry of Nepal announced the opening of restricted area in October 1991. however, there is strict control over obtaning special
Permit from the Dipartment of immigration in other to protec local tradition from outside influence as well as to protect their environment reason of kaligandaki from the tibetian boerder south of kagbeni is generally reffered to as upper Mustang the trek to Lo-manthang pass through an almost tree less barren landscape.A steep
rockky mountain trail climb up and down hill with panoramic view of Nilgiri, Annapurna, Dhaulagiri Mountains and several other peaks making a truely and memorable trekking in Mustang Himalaya