Rhondda Valley
The Rhondda is a former coal-mining valley in Wales, consisting of 16 communities built around the River Rhondda. The valley is made up of two valleys, the larger Rhondda Fawr valley (mawr large) and the smaller Rhondda Fach valley (bach small). Both the singular term 'Rhondda Valley' and the plural 'Rhondda Valleys' are commonly used. (Source: Wikipedia)