This is Casemate 30 of the Geul-Line. This casemate of type S-3 was part of the delay line of the Dutch Geul-Line.
The territorial commander in Southern Limburg constructed two defense lines, namely a border line (4 S-3 casemates) and a delay line (30 S-3 casemates).
Do you have more information about this location? Inform us!