The Limi valley forms the northernmost part of Humla district in north-western Nepal, a high, dry valley on the border with the Purang area of Tibet. It is drained by the Limi river, a tributary of the Humla Karnali, and has just three permanent villages: Til, Halji and Dzang, lying between about 3,700 and 4,100 m. Fewer than a thousand people live here, farming barley and herding yak, sheep and goats.
Limi is one of the remotest trekking areas in Nepal and is visited by only a small number of trekkers each year. A loop from Simikot, the district headquarters, typically follows the Humla Karnali river upstream to Hilsa on the Tibetan border, climbs east into the valley near Til, continues through Halji and Dzang, and returns over the Nyalu La, a pass of about 4,995 m, and the Talung valley. The loop usually takes around two weeks on foot.
The landscape is stark and spacious: bare mountainsides, high grazing grounds, small lakes and glaciers on the slopes of the Gurla Mandhata massif. Wildlife reported here includes snow leopard, Himalayan wolf, Tibetan gazelle, kiang (Tibetan wild ass), argali, blue sheep and, since 2014, wild yak, once thought lost from Nepal. From the Lapcha La on the border, clear days show Lake Manasarovar and Mount Kailash in Tibet.