Twenty years after the completion of China’s monumental Three Gorges Dam, a new study by Chinese geologist Fan Xiao finds the mega-project’s impacts on his hometown of Chongqing, some 600 kilometres upstream, have been dramatic. Lost in the dam’s grand scale are the harsh consequences borne by the region’s environment and economy; its after-effects are felt most intensely by the individuals and communities struggling to adapt in the immense shadow of China’s largest public works effort since the Great Wall.