TRAILFLAT, a hamlet, in the parish of Tinwald, county of Dumfries, 3 miles (N. W. by W.) from Lochmaben; containing 44 inhabitants. This is a very small place, lying in the eastern part of the parish, and watered by the river Ae. The lands around the hamlet of Trailflat formed an ancient parish, now united to Tinwald, which see.