What is "upavon"

Upavon is a rural village and civil parish in the English County of Wiltshire, England. As its name suggests, it is on the upper portion of the River Avon which runs from north to south through the village. It is on the north edge of Salisbury Plain about south of Pewsey, southeast of the market town of Devizes, and north of the cathedral city of Salisbury. The A345 and A342 roads run through the village. Most of Upavon is between 90 and 100 metres above sea level.