To show the development of the Victorian fortifications a number of highly detailed maps have been developed showing the forts and batteries that were around or being considered at a given point in time. The sites are colour coded to show different statuses:
Click on the date for the map you wish to see.
January 1850
January 1860
January 1870
January 1880
January 1890
January 1900
January 1910
January 2020