A Plan of the City & Harbour of LOUISBOURG; shewing that part of GABARUS BAY in which the English landed, also their Encampment during the Siege in 1745

There is an inset map of Cape Breton Island in the top right hand corner of the map.There is one scale bar on the bottom of the main map, in English miles. The Prime meridian is unknown for the main map, due to lack of graticule and information on the map, but the key map indicated that the Prime meridian with that map is based in London. Both maps indicate North facing to the top of the map