What are the grey dashed lines for?
Our Site-centred maps occasionally have grey dashed lines on them. These are to indicate a join between two adjacent, but different, map sheets. The sheets have been electronically “stitched” together to create a seamless mosaic of each of the 32 counties. Due to their age (they are the original maps published in the 1840’s) the maps have slightly stretched or warped but the impact is negligible and adds to the historical nature of the mapping.
