Stack Rock Gun Tower
(SM 864049) In the 1850s, a system of forts and gun towers was planned around Milford Haven to defend the naval dockyard at Pembroke Dock.
Plan of Stack Rock Fort with earlier gun tower in the centre.
As well as forts in the immediate vicinity of the dockyard, a network of fortifications was also erected near the mouth of the Haven. One of the estuary batteries - a trefoil-plan gun tower comprising nine guns - was situated on Stack Rock a rocky islet in the middle of the Haven. Work started on the site in 1850 and was completed in 1852 at a cost of £6,000; however the battery was equipped with just three smooth bore guns together with a shot furnace and had a garrison of 20 men and was soon obsolete.
