WW1 field gun position located in the inner North Bastion of the Citadel. Destroyed. Field visit in 1994

From the National Heritage List for England:

Following the completion of the new Admiralty harbour at Dover in 1907, an Admiralty Port War Signal Station controlling all shipping within the harbour was located on Western Heights, but moved to Dover castle in 1914. During World War I the Heights were primarily used for their barrack accommodation, although Citadel Battery remained armed and in 1916 Drop Redoubt was provided with searchlights and two 6 pounder Hotchkiss guns to counter air raids, whilst the Citadel received a single 3 inch gun.

<1> CBA Defence of Britain Project, 1994, Defence of Britain Site Report (Bibliographic reference). SKE6447.