Location and coordinates are for the approximate centre of Mainstone within this administrative area. Geographic features and populated places may cross administrative borders.
Gazetteer of the British Isles (Edinburgh: Bartholomew, 1887). John Bartholomew
Mainstone, par., Shropshire and Montgomeryshire, on Offa's Dyke, 7½ miles SE. of Montgomery, 6263 ac., pop. 353.