In examining wares discovered from the cultures of Sanxingdui and Jinsha and from the former site of the ancient kingdom of Dian in Sichuan and Yunnan provinces, this article highlights a number of shared features and trends that suggest a continued artistic, technological and cultural transmission through time and space. The article aims to supplement established theories on the rich material culture of this region. It will look in particular at the development of its striking bronze metallurgy, largely deriving from the established traditions of the Yellow River valley in China’s Bronze Age. It highlights the function of a dense network of trading routes, referred to in modern scholarship as the “Southwest Silk Road”, as an important facilitator of cultural and artistic exchange and reciprocation from ancient times.