The Coleshill site was excavated by The Ridgeway Military and Aviation Research Group.
These images were taken when the "observation post" in Cuckoo Pen Wood was being excavated.
It was the normal double-skinned chamber, except that the inner walls were not corrugated iron, but asbestos.
We eventually found that the chamber had an access from the top of a shaft leading to one of the old water tunnels.
A pot-holer friend surveyed the tunnel and found that it led to a point below the site of the former kitchens.
Following a fire in the original ammo store during the war, we think this was the replacement, carefully sited some
distance from the house and accessible only by discrete means.

RMARG members removing the 2nd 1/2 ton piece of concrete from the site.


One of the access step rungs causes amusement.

Peter Long and team take a break from excavating.

Some of the finds from the Obs post, including the counterweight for the inner cover.
Below you can see the drawings made of the tunnels.


These images were taken of the training OB on the site. See more images of this OB on our OB page.

Inside the OB for the first time. See original entrance trapdoor top right of frame.

The concrete cover over the OB main entrance. this is the view of the underside, showing the impression
of the wooden cover. that in turn would have been hidden beneath a camouflage.
It's not clear whether this concrete was a later addition made after the facility was closed, to hide/make
the entrance safe. The small arms rounds were found inside the OB.

RMARG members raising the height height of the OB entrance (to make it safer and more visible).
Note manhole cover on left awaiting fitting.

Where the escape tunnel would have been.

The break-out in the Ha ha wall. What looks like the end of a lintel is only visible because we cheated.
The original was so well disguised that we could only find it by examining the other side of the wall.
It had been cemented over and lichen-covered (by pouring milk over the cement, apparently)


The base of the hole concrete tree that was used to carry the cooking fumes up over the tree line.
All images are copyright to RMARG
See more images of this OB on our OB page.








