What English county does the River Gwash flow through and the village of Litter Casterton reside in?
River Gwash The River Gwash, a tributary of the River Welland, flows through the English counties of Leicestershire, Rutland and Lincolnshire. It rises just outside the village of Knossington in Leicestershire, near the western edge of Rutland. It is about 20 mi long.
Afon Wyre Afon Wyre (] , meaning "River Wyre", ) is a small river in the county of Ceredigion, Wales; also called Afon Wyre Fawr ("Great Wyre") and formerly Gwyrai.