TR1989 : Knock John Naval Maunsell Fort

17 km from Courtsend, Essex, Great Britain

Knock John Naval Maunsell Fort
Knock John Naval Maunsell Fort
Knock John Fort was floated and placed in its current position in August 1942 as a defence against enemy shipping and aircraft during the Second World War. It is the only surviving naval sea fort of its type in the Thames Estuary (though a similar platform is still occupied today and exists as the Independent Principality of Sealand). Soon after the War it was abandoned by the navy only to be briefly occupied between 1965 and 1967 by Radio Essex, a pirate radio station. More recently it's the home of many seagulls. It's further out than Shivering Sands and Red Sands, but can still be seen from the north Kent coast on a really clear day, being described as a "pagoda on the horizon".
Creative Commons Licence [Some Rights Reserved]   © Copyright Hywel Williams and licensed for reuse under this Creative Commons Licence.
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1:50,000 Modern Day Landranger(TM) Map © Crown Copyright
1:50,000 Modern Day Landranger(TM) Map © Crown Copyright
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TR1989, 4 images   (more nearby )
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Geograph (First for TR1989)
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Date Taken
Saturday, 3 June, 2006   (more nearby)
Sunday, 4 June, 2006
Fortifications   (more nearby)
Subject Location
OSGB36: geotagged! TR 192 895 [100m precision]
WGS84: 51:33.7056N 1:9.6644E
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