Mustang- the last Forbidden Kingdom in Nepal also known as the Lost Tibetan Kingdom Mustang Trekking is considered to be relatively easy trekking trails in Nepal, as it passes through the permitted route to Lo Manthang that lies in the very heart of Mustang—the best preserved destination. The trekking to Mustang is all about having trekking through almost treeless barren landscape and barren moonscape of eroded sandstone pillars and discontinuous moraine terraces, which together present a colorful mosaic. It is one of the most mysterious and least known kingdoms, where we can explore a weird and wonderful landscape. Mustang is a remote lies to the north of the Annapurna Region on the Tibetan border. There are numerous of Buddhist monasteries and nunneries, built into forbidding cliffs and mountain ledges. The attractions in Mustang district are, the Kagbeni, a quaint medieval town nestled in apple orchards and encircled by snow mountains and the Lo Manthang, an ancient capital city, built of whitewashed mud bricks and teeming with Buddhist prayer wheels and stupas, seeming to arise from the earth itself. There are very few guesthouses and restaurants in the region and therefore, you need to be well equipped.
Mustang was once an independent kingdom, although closely tied by language and culture to Tibet. From the 15th century to the 17th century, its strategic location granted Mustang control over the trade between the Himalayas and India. At the end of the 18th century the kingdom was annexed by Nepal.
Though still recognized by many Mustang residents, the monarchy officially ceased to exist on October 7, 2008, by order of the Government of Nepal. The last official and current unofficial king (raja or gyelpo) is Jigme Dorje Palbar Bista (born.1933), who traces his lineage directly back to Ame Pal, the warrior who founded this Buddhist kingdom in 1380. Ame Pal oversaw the founding and building of much of the Lo and Mustang capital of Lo Manthang, a walled city surprisingly little changed in appearance from that time period.
The main hydrographic feature of Mustang is the Kali Gandaki River. The river runs southward towards Nepal Terai, bisecting Mustang. Routes paralleling the river once served as a major trade route between Tibet and India, especially for salt. Part of the river valley in the southern Mustang District forms by some measures the deepest gorge in the world. Traditional Mustang (the Lo Kingdom) is 53 km north-south at its longest and 60 km east – west at its widest, and ranges from a low point of 2750 m above sea level on the Kali Gandaki River just north of Kagbeni to 6700 m (Khamjung Himal, a peak in southeast Mustang).