For questions about the county of Somerset in the south-west of England. This tag is not to be used for the towns and counties called Somerset in the United States and elsewhere.
According to Wikipedia:
Somerset is a ceremonial and non-metropolitan county in South West England. It borders Bristol and Gloucestershire to the north, Wiltshire to the east, Dorset to the south-east, and Devon to the south-west. It is partly bounded to the north and west by the Bristol Channel and the estuary of the River Severn.