Langmusi Town is a small alpine settlement located on the eastern edge of the Tibetan Plateau in China. It sits within a valley shared by the provinces of Gansu and Sichuan, straddling two large monastery complexes. Administratively, most of the town is part of Luqu County in the Gannan Tibetan Autonomous Prefecture of Gansu, while a small southern portion falls within Zoigê County in the Ngawa Tibetan and Qiang Autonomous Prefecture of Sichuan.
The town serves as a common stop for tourists traveling overland between the Sichuan and Gansu provinces. The local population is primarily composed of Tibetan people. Its geography and cultural landmarks, specifically its monastic complexes, characterize its identity as an alpine destination in the region.