The
Nujiang Lancang Gorge alpine conifer and mixed forests stretch from southern
Qinghai and eastern
Tibet Autonomous Region in the north to
Yunnan Province in the south. Portions of the forests also extend into extreme western
Sichuan (China) and eastern
Kachin State (Myanmar). The primary physical features to support the Nujiang forests are the
Nu (Salween) and
Lancang (Mekong) River valleys from approximately elevation to elevation. The southern part of this ecoregion forms the core of the
Three Parallel Rivers UNESCO World Heritage Site. In addition to the mountain valleys, the Nujiang Lancang Gorge alpine conifer and mixed forests are found across parts of the Hengduan Mountains including, from west to east, the
Taniantaweng Mountains, the
Gaoligong Mountains, the
Nu Mountains, and the
Yun Range. ==Flora and fauna==