Location and coordinates are for the approximate centre of Blackwell within this administrative area. Geographic features and populated places may cross administrative borders.
Gazetteer of the British Isles (Edinburgh: Bartholomew, 1887). John Bartholomew
Blackwell, township, Darlington par., S. Durham, on river Tees, 1½ mile SW. of Darlington, 1589 ac., pop. 406; P.O. The seat of B. Hall is in the vicinity.