Marker Guide
Blue Marker – Pillboxes, Extant (still existing, not destroyed or lost)
Green Marker – Pillboxes, Removed
Black Marker – Chain Home Low Station
Interactive Map
Defencology
The Post-War Evolution of WWII Defences in the Landscape
The Post-War Evolution of WWII Defences in the Landscape
Blue Marker – Pillboxes, Extant (still existing, not destroyed or lost)
Green Marker – Pillboxes, Removed
Black Marker – Chain Home Low Station