View over Stack Rock Fort to Angle Penninsula and Thorn Island.
Perhaps the most striking of all the Haven forts , sitting remote on a mid-channel rock in the haven .
Originally a Cambridge Gun Tower built 1851 , similar to the Martello Towers of Pembroke Dock .
Between 1859 and 1870 the present building was built , a circular casemated fort with 23 guns which completely enveloped the former tower . Accommodation for 180 men .
Location: SM 871.054