Wuhai is a prefecture-level city and regional center in the Inner Mongolia Autonomous Region, China, and is by area the smallest prefecture-level division of the region. It is located on the Yellow River between the Gobi and Ordos deserts. Wuhai became a single city occupying both banks of the Yellow River with the amalgamation in 1976 of Wuda on the left (west) bank together with Haibowan on the …