Sanquhar Castle, now a ruin, was built in the 13th century; the ruins are situated north east of Dumfries overlooking the River Nith.[1] Situated on the southern approach to the former royal burgh of Sanquhar in Dumfries and Galloway, south west Scotland, it sits on the trail of the Southern Upland Way. The castle is a stronghold bounded on the west by the River Nith, to the north by a burn, and made strong by a deep ditch running the remainder of the boundary.