Ordinance Survey map dated 1919
LIDAR map of Gressingham area
This site provides links to:
Archaeological Site Maps, Aerial Photography, LiDAR and Old Ordnance Survey Maps of Gressingham
Section of a map of the Lake District of Cumberland, Westmoreland and Lancashire, scale about 3.5 miles to 1 inch, published by Charles Thurnam, Carlisle, and by R Groombridge, 5 Paternoster Row, London, 3rd edn 1843.