The river suffered a devastatingflood in 1940, which damaged theChâteau de Chenonceau, which spans the river, and other structures along the banks. It owes its name to the pre-Indo-European rootkʰar 'stone'.
The Cher was part of a network of waterways that linked the city ofTours toNevers, where connections to other regions of France existed. As of 2018[update], only the 54 kilometres (34 mi) section betweenLarçay (southeast of Tours) andNoyers-sur-Cher is navigable for small boats (maximumdraft 80 cm). It has 14 locks.[2] At Noyers-sur-Cher, it is connected with theCanal de Berry, of which only the westernmost 15 kilometres (9.3 mi) section untilSelles-sur-Cher is navigable.[3]