Located in Yunnan Province in southwestern China, the sparsely populated Hengduan ranges are China’s longest and widest mountain system. Main sources of income are cattle, sheep, and forestry. The ranges also are a major tea producer. Most of the inhabitants belong to minority nationalities such as the Lisu, Yi, Bai, and Tibetans (Zang).
The Hengduan ranges in northwest Yunnan Province, extending into neighboring Tibet (Xizang) Autonomous Region and Sichuan Province, are China’s….