Sanjiang Dong Autonomous County in Liuzhou City, Guangxi

Sanjiang or Three Rivers Plain in Heilongjiang, a vast wetland watered by the Heilongjiang (Amur), Songhua, and Ussuri rivers.

The Three Parallel Rivers of Yunnan Protected Areas, a region in northwestern Yunnan where the Jinsha, Lancang, and Nu rivers run roughly parallel for over 300 kilometers, recognized as a UNESCO World Heritage Site.

Sanjiangyuan National Nature Reserve, a high plateau region of Qinghai containing the headwaters of the Yangtze, Yellow, and Mekong Rivers

Sanjiang Ecological Tourist Area in Wenchuan county [[汶川县|汶川縣|Wen4 chuan1 Xian4]], northwest Sichuan

Jiansanjiang, a large-scale agricultural development zone in the Sanjiang river plain of Heilongjiang Province