Does anyone know what the 3 old storage bunkers are in "Big Covert" near little Harrowden, Northamptonshire

Question

I have walked along a track leading to a wood and you can see two big storage bunkers inside black outer walls. Around the corner there is another one. There is I.C.I mentioned on walls. Nobody seems to know what it is or was!

Answer 1

Most Cold war Bunkers are Now discoverable Via your Local Library! As they have been De-Classified.
Most are sold off to Logistic Companies who store Freight or Goods inside them!

Answer 2

ICI are the huge chemical company, may have been used as a massive chemical stotage

Answer 3

Nosey or what