Early farming in northern China featured the cultivation of two species of millet, broomcorn and foxtail. Although previously seen as focused on the Yellow River, the authors show that the earliest agriculture is actually found in the foothills of the neighbouring mountain chains, where drier and better drained locations suited millet cultivation, particularly broomcorn. In this they echo new thoughts on the locale of early agriculture in south-west Asia, on the hilly flanks of the Fertile Crescent rather than in the valleys of the Nile or the Euphrates.