Life around Lugu Lake — high up in the Himalayas, straddling China’s Yunnan and Sichuan provinces — has been changing rapidly. Until quite recently, the Mosuo, a Chinese ethnic minority of about 40,000 people, enjoyed hundreds of years of relative stability in a complex matriarchal structure that values female power and decision-making.
Most famous among Mosuo traditions are the practice of a “walking marriage”: Women may choose and change partners as they wish, and because Mosuo children stay with their mothers’ families for life, men only visit their female partners by walking to their houses at night. Because the head of a Mosuo household is always a woman — she is responsible for all financial decisions and the passing of the family name and property — the Mosuo are often characterized as a matriarchal society.