Into the Land of the Black Lisu
The Nujiang Canyon, on Yunnan's western frontier, was until the 1930s a blank area on the map that not even Chinese troops dared to enter. In 1905 two British explorers made the first foray into this land of the Black Lisu.
A Lahu minority Christian service in a hill village near Menglian.
Judith Shapiro: Mao's War Against Nature: Politics and the Environment in Revolutionary China
Even if Chinese civilization has developed more against than with nature, the Mao years were a particular exercise in environmental destruction. In one case-study Shapiro tells the story of the draining of the northern part of Dianchi Lake, one of the first steps turning Kunming's lake into the fetid cess-pool it is today.
A number of Chinese historic texts covering life and politics in Yunnan have survived over the centuries. I have translated a few of them.