1 : 31680 This plan follows the meandering River Dee from Chester, at the top of the map, to Overton and Ruabon, at the bottom left. A section of the Shropshire Union Canal, running from Chester to Waverton, is shown in blue. At the bottom left of the map, an area calculation table survives in black ink. The pencil gridlines running through Chester were most likely guides for making enlarged or reduced copies of the map. Field, John
1 : 31680 A note in the bottom left corner of this drawing records the date it was received at the Drawing Office in the Tower of London, where final reduced copies of the plans were made. It is one of the few drawings to make reference to the Tower. A triangulation drawing appears on the reverse, along with an area calculation, referred to in its formal title. Major communication routes are highlighted in yellow, following standard military cartographic convention. Hughes, Herbert J.
1 : 31680 .This drawing covers part of the Wirral, with the county border between Cheshire and Flintshire indicated by a red dotted line at the bottom left,,near the estuary of the River Dee. The map is formally titled at top left, and,features no hill sketches. Two-inch pencil squares superimposed over,the drawing,were,used for copying and reducing the map. Hughes, Herbert J.