Sanquhar is a community on the River Nith in Dumfries and also Galloway, Scotland. It lies north of Thornhill as well as west of Moffat. It is a former Royal Burgh. Sanquhar is notable for its tiny post office, established in 1712 and held to be the earliest working post office in the world. It was additionally the place where the Covenanters, that opposed episcopalisation of the church, signed the Sanquhar Declaration renouncing their loyalty to the King, an event commemorated by a monolith in the main street. The church of St Brides consists of a memorial to James Crichton, a 16th-century polymath. The damages of Sanquhar Castle stand close-by. Nithsdale Wanderers, the local team, were formed in 1897. In 1924-- 25, Wanderers won the Scottish Division 3.