What English county does the River Gwash flow through and the village of Litter Casterton reside in?
Little Casterton Little Casterton is a small village and civil parish in Rutland, England. The population of the civil parish at the 2001 census was 148, increasing to 218 at the 2011 census. It is about two miles (3 km) north of Stamford on a minor road that runs to the south of the River Gwash between Great Casterton and Ryhall.
Somerset Somerset ( ) (or archaically, Somersetshire) is a county in South West England which borders Gloucestershire and Bristol to the north, Wiltshire to the east, Dorset to the south-east and Devon to the south-west. It is bounded to the north and west by the Severn Estuary and the Bristol Channel, its coastline facing southeastern Wales. Its traditional border with Gloucestershire is the River Avon. Somerset's county town is Taunton.