Joint Maritime Facility (JMF) - a huge underground US/UK Navy "listening" bunker, which has been responsible for tracking submarines and surface ships out in the North Atlantic ocean. The JMF is sometimes also referred to as the Terminal Exchange Building (TEB).
[www.secret-bases.co.uk]
Joint Maritime Facility (JMF) underground bunker
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By kjfitz @ 2007-04-15 23:29:33
Anonymous
@ 2018-01-18 11:53:09
The building is properly called the Terminal Equipment Building. This is where the wet-end sea cable would terminate with the front-end equipment. A sea cable shore facility is the "terminal", hence "Terminal Equipment Building", or "T-Building" for short (navy parlance). --Cuba Pete