To learn more about the sigificance of this site see this video: If you know the area and what is located right next to where we were you next to it might show you the significance. See this video ruclips.net/video/e561ug0lFe4/видео.html
Amazing video, Thanks Guys. One small issue speaking as someone who worked at all the Copenacre sites in the 1980's (Hartham, Monks Park, Spring Quarry and Colerne Airfield) Copenacre was a Royal Navy Stores Depot (RNSD) not an armaments depot (RNAD). Munitions were stored under Corsham in the second world war only. Sorry to be so pedantic! I have not been to Corsham in 30 years so the drone footage was fantastic for me. Thanks again
I was in the army for quite along time however there is no way you'd get that close to a working military base ! A lot of these tunnels got blocked up quite a few years ago and if it was still a working military site they'd be more security than a few sensors! Great video by the way but just be careful you dont go onto working military locations!
I hope one day someone tries putting a borescope under the red door in the hope of seeing the other side the leads can be bought so cheaply to attach to your phone. Yes it was walking around a mining facility but I found it fascinating. Thanks Matt and the gang 👍🏴
If you know the area and what is located right next to where we were you next to it might show you the significance. See this video ruclips.net/video/e561ug0lFe4/видео.html
@@TheSecretVault I get that mate and I totally understand where you were. I love your videos but this one was lacking a bit for me. I really hope you manage to get into the actual location one day as that will be absolutley epic. Keep up the good work and look forward to more explores 🙌
Matt, just wanted to say THANKS for lugging around that camera for all that time. I too know how even the lightest camera gear is heavy after an hour of lugging it around. So thanks so much for the high quality shoot. That Sony cam is really something else with the way the sensor is in them. Makes me want one myself. Already looking forward to seeing the next big explore which has probably already been done and just waiting to receive the upload treatment.
A new emergency exit was added to CCC sometime around 2016 I think. You can easily see it by looking at the archives on Google maps satellite views, at one point there is no door at the rear of the main entrance mound, then there is. I wonder if it's possible that the new exit was added so that underground routes via the other quarries were not needed? It would explain the bricked up areas you saw looking relatively recent...
@@JasonJohnson-yu8zf I think so, it also looks like a vent shaft. Supposedly this building was the proper long distance emergency exit 51.417406930780636, -2.228694905796046 as you can see it's now been fenced off whereas before it lead directly onto the road.
Looking at the map that's visible in part 2 of these videos it's clear that they went in the South East direction down the MOD tunnel first, over the cross overs and then reached the end of the MOD tunnel where the escape slope shaft goes up into the industrial estate, not far to the East of the main Hartham Park compound. The ladder connects back down into the lower level, as shown on the map. They then went in the North West direction along the MOD tunnel until it breaks into Copenacre, hence all the corrugated metal. This is all fairly clear if you look at google images of the Corsham quarry limits, some of which show the MOD tunnel as a straight line South East from Copenacre. I think that MOD tunnel was a Copenacre escape route.
This has been a brilliant set of uploads, you and the crew have brought the secret and hidden world to the masses, I find it hard to get how you managed to get so far around this labyrinth and for how long you were there, I can't understand how you were able to get as far as you did, absolutely brilliant and thanks for letting us know what is happening underground. Also I know you said who was who in the part 1 but I have to 👏 the guy who carried the shopping bag. He must have hands like rocks. You should club together to buy some big rucksacks to keep as spares in the car. Well done Matt and thanks again 👏👍
Love these videos Matt iv been watching you for about 4-5years now I think your awesome and the only person left this earth who’s full of true I love the fact mate you just say and show it how it is no bullshit keep up the good work and we will continue to support you mate ✊
@46:30 You won't touch anything, you're not like that.... But Jordan will. He went from no bag in part one to a bag in part 2 from the canteen, then it filled up and in part 3 he ends up with a larger bag. LoL 👌🤐
This was by far one of the BEST explores and I can see why it was split up to 3 parts. Thanks for sharing and I hope your shoulders recovered without too much pain.
Old Bath stone quarries /mines were reused for cold war bunkers in this area . Although Bath stone is not as precious as metals or gem stones it simply needs cutting out and moving ; it does not have the expense of separation of ores for metal , or rock for gems , in simple terms . It is still mined as it is valuable as a building material , expensive as it may be . You did see some storage of cut blocks in the film and I suspect Matt and the others did not go everywhere in the tunnels or show all the film footage . Possibly the mining companies work in hand with the MOD ; most likely , of course , always did and will do !
Bring on the next one Matt. That was a very interesting Journey. You sure bring to light what is truly going on underground. Look at the houses they are building on top of that maze. Like was mentioned earlier, if someone dropped a bomb in the right place the whole town would disappear into the ground. Bet they won't mention what is below when someone is buying one of their new houses. Boggles the mind. All the best to you all.
amazing its a history doc now this video all getting buried under suburbia, great work old son!!!!! no one would have ever know whats under there property,
not watched it yet but looking forwards to it this matt back to his best , getting into the places they really dont want you getting into , and you have to wonder that with enough time could you explore different levels and get past some of the walled of areas by going up and down ?.
@@TheSecretVault I hope you do go back. This is about as modern of a site as we will ever get to see. Though they will have no doubt found out about the video by now by one of their thousands of employees. I really like seeing the tech involved in these places.
😊 wow ,what a big Massiv building , a master Peace , the works that Clean ,wow fantastic ! If the stone IS that easy to Work Out i do BELIVE that in the Future IT Takes Just a Startbutton and Computerprogrammed mashines are working similar spaces Out . 😅 Thanks for publishing the Video! 👍👷
Wow! gonna re watch this! I watrhed Red Door episode, great stuff thanks. I love Urbex and you do it so well! Thankyou!! I always hit the like button, I have a friend who has lovely Husky he is called Roscoe, Bet he would love to meet Angel. You even been on my door step, Predannack Airfield down in Cornwall! Been in same aircraft I been, I must edit and upload my video. Been a subscriber for couple of years now, Thanks Matt.
Thank you so much Matt, Kept me entertained for sure!! Amazing too think that this all below us, Well for some of us maybe any way lol. I gotta a feeling there could be more down there?? But who knows?? 🤷 Cheers Matt 👍
@@TheSecretVault 100% and with all them infer red sensors everywhere they definitely don't want you seeing or getting somewhere. I wonder where the tunnel went which had a sensor that was in the middle and you all turned around and went back?? Would that had gone further??? 🤔🤷
You really cant comprehend the shear size of the bunker, it is incredible. The MOD really could make a mint leasing space out to interested companies, the potential for film sets would make for an interesting venture that could bring money in for veterans families. Missed opportunity I think. Awesome stuff, well worth the wait.
Every vid is always awesome! More secret installations please 🙏 Your the only channel that I know that is as cool as this! Let me know of other channels please! Seriously Matt! Thank you for what you do ✌️😎🇦🇺
Matt i loved this video another whats around the next corner or where dose that tunnel go seems theres a lot more down there to look at absolutely loved all 3 videos again thank you for going down there and filming it for us all
love your show. my friends and i used to do exploring in the 80s. unfortunately we couldn't afford a video cam back then, and they were too massive lol. all the best. SI.
Just imagine the echo if BeFace was down there :-) :-) :-) banging content Matt! start a Patreon so we can donate more than just the cost of a membership...
Was really gripped to all 3 parts. It makes you think about the stuff they keep from the public. Thank you for showing us what we never would of dreamed of seeing and probably no other person will. Great explore.
Great stuff Mr Williams and company, I’ll bet those maps are interesting 👍 Bit of ARUS…aka, "age related urbex syndrome" going on though…forgetting your welly boots, lens cloths and extra SD cards, it comes to us all 😂
I'd imagine they lower it down that steep ramp by winch the same place you see I think in part 2 where they winch the cut stone blocks out on that cart 🤔
Most enjoyable and interesting tour Matt. It does make you wonder it there are exits from some of those facilities into the quarry. Mind you if you were building them would you build in a disguised entry/exit point or keep them within the boundary of your secure perimeter?😮
Great video series Matt, incredible explore, edge of the seat stuff, very intriguing. I just worry about the MOD 'erasing' you and 'zapping' us lot with the stare into the light thingy⚠️😲😳
In west country parlance, those built pillars are called "slags" Hey have you tried Tillywhim caves down in Swanage, Enid Blyton wrote one of her books centred around those caves and they occasionally get opened by rascals who just happen by with bolt croppers to accidentally knock off the padlocks ;) Was a major smuggling centre run by Bournemouth rascally pirate John Gullivar whom Bournemouth council has done its level best to erase any memory of and believed his tall tales (very tall as he was a rotund fecund "gentleman") led to Verne semi basing a book on his acclaimed exploits and no coincidence that one of John's biggest whoppers was a tribe of pygmies who lived over the water of Sandbanks... in Lilliput :P
1:03:56 This is insidious 😢 How many mushroom peoples are they planning for ? ! ! Well I never thought of that 😅 I suppose if I was really smart I'd be hiding from the boolean operators . . . . . Laugh on dotted line -_-
The amount of material being moved underground appears enormous. Obviously, much is used to backfill and block spaces, but there still must be an excess. Does the MOD have a side business selling Bath Stone?
@thesecretvault An amazing video as always. Do you think there is a connection between the CCC and Box Tunnel? Sources says that "the only element of the complex that remains is the former computer centre and the visible north end of the tunnel has been sealed by concrete and rubble. " Surely there is a reason the CCC is so close to a mainline railway?
![BLACK BAG - Official Trailer [HD] - Only in Theaters March 14](http://i.ytimg.com/vi/Du0Xp8WX_7I/mqdefault.jpg)
To learn more about the sigificance of this site see this video: If you know the area and what is located right next to where we were you next to it might show you the significance. See this video ruclips.net/video/e561ug0lFe4/видео.html
I would love to do wot you do its always interested me
@Bas whatever. blocked
Brilliant Matt.
Amazing video, Thanks Guys. One small issue speaking as someone who worked at all the Copenacre sites in the 1980's (Hartham, Monks Park, Spring Quarry and Colerne Airfield) Copenacre was a Royal Navy Stores Depot (RNSD) not an armaments depot (RNAD). Munitions were stored under Corsham in the second world war only. Sorry to be so pedantic! I have not been to Corsham in 30 years so the drone footage was fantastic for me. Thanks again
The pure joy in your voice during this explore is just bliss Mr Williams ❤💋
@3:56 the sign mentions to call the MOD Navy on 0225 prefix ... the old avon/bath tel code. So wall was bricked up during 90s decommissioning
I was in the army for quite along time however there is no way you'd get that close to a working military base ! A lot of these tunnels got blocked up quite a few years ago and if it was still a working military site they'd be more security than a few sensors! Great video by the way but just be careful you dont go onto working military locations!
I hope one day someone tries putting a borescope under the red door in the hope of seeing the other side the leads can be bought so cheaply to attach to your phone. Yes it was walking around a mining facility but I found it fascinating. Thanks Matt and the gang 👍🏴
You could also just dig out the grout and remove bricks.
So you've in effect spent 3 episodes walking around a quarry.... was hoping for something more interesting to do with the MOD tbf.
If you know the area and what is located right next to where we were you next to it might show you the significance. See this video ruclips.net/video/e561ug0lFe4/видео.html
@@TheSecretVault I get that mate and I totally understand where you were. I love your videos but this one was lacking a bit for me. I really hope you manage to get into the actual location one day as that will be absolutley epic. Keep up the good work and look forward to more explores 🙌
Go find it then..you seem to think it's easy..look forward to viewing your explorer's..
@@kennethgardner3310 Never said it was easy, I know how hard these explores are, stop being so touchy 🤣
I don’t see you putting your life and liberty on the line,mate.
The movement sensors probably have their indicator LED's turned off so people think they are not working ! (we used to do this on some sites).
Matt, just wanted to say THANKS for lugging around that camera for all that time. I too know how even the lightest camera gear is heavy after an hour of lugging it around. So thanks so much for the high quality shoot. That Sony cam is really something else with the way the sensor is in them. Makes me want one myself. Already looking forward to seeing the next big explore which has probably already been done and just waiting to receive the upload treatment.
A new emergency exit was added to CCC sometime around 2016 I think. You can easily see it by looking at the archives on Google maps satellite views, at one point there is no door at the rear of the main entrance mound, then there is. I wonder if it's possible that the new exit was added so that underground routes via the other quarries were not needed? It would explain the bricked up areas you saw looking relatively recent...
This seems like it'd logically be correct.
It wouldn't surprise me if this unassuming building is one of them
51°25'36"N 2°12'22"W
@@JasonJohnson-yu8zf I think so, it also looks like a vent shaft. Supposedly this building was the proper long distance emergency exit 51.417406930780636, -2.228694905796046 as you can see it's now been fenced off whereas before it lead directly onto the road.
Looking at the map that's visible in part 2 of these videos it's clear that they went in the South East direction down the MOD tunnel first, over the cross overs and then reached the end of the MOD tunnel where the escape slope shaft goes up into the industrial estate, not far to the East of the main Hartham Park compound. The ladder connects back down into the lower level, as shown on the map. They then went in the North West direction along the MOD tunnel until it breaks into Copenacre, hence all the corrugated metal.
This is all fairly clear if you look at google images of the Corsham quarry limits, some of which show the MOD tunnel as a straight line South East from Copenacre.
I think that MOD tunnel was a Copenacre escape route.
Another great explore Matt , its always good to see what the mod are up to underground.
This has been a brilliant set of uploads, you and the crew have brought the secret and hidden world to the masses, I find it hard to get how you managed to get so far around this labyrinth and for how long you were there, I can't understand how you were able to get as far as you did, absolutely brilliant and thanks for letting us know what is happening underground. Also I know you said who was who in the part 1 but I have to 👏 the guy who carried the shopping bag. He must have hands like rocks. You should club together to buy some big rucksacks to keep as spares in the car. Well done Matt and thanks again 👏👍
Jordans now usinga ruck sack... sensible
Took me a few days but I finally got around to watching parts 2 and 3. It was well worth the wait.
Love these videos Matt iv been watching you for about 4-5years now I think your awesome and the only person left this earth who’s full of true I love the fact mate you just say and show it how it is no bullshit keep up the good work and we will continue to support you mate ✊
Bringing some sort of a lidar mapping device would be nice for next time
Comment for all 3 episodes - Excellent Matt 👍
@46:30 You won't touch anything, you're not like that.... But Jordan will. He went from no bag in part one to a bag in part 2 from the canteen, then it filled up and in part 3 he ends up with a larger bag. LoL 👌🤐
Just started pt 3, loving it so far. Keep up the good work.
Well this is going to be this evening viewing with me popcorn and total quite in the home so I can take mats exemplary work in 👏👏👏👏👏👏👍
Good morning Secret vault!! 👌💪 What an Epic explore!
Didn't see any bogs down there? Where do they shit?
I wondered that too
This was by far one of the BEST explores and I can see why it was split up to 3 parts. Thanks for sharing and I hope your shoulders recovered without too much pain.
I think RUclips limits how large/long a video can be. So multiple parts.
@@dan2921videos can be about 12 hours long I believe I no there are loads around that long anyway.
Superb series, thank you for sharing
Excellent content from start to finish. Thanks for sharing.
Well done Matt,pt3 was just as great as the rest.
Great Explore From US (Washington State)
What a amazing explore that was just gose to show you don't know what could be beneath your feet. Keep up the amazing work you do
Defo up there as one of your best explores on your channel Matt
Great job, loved the episode. That ginger lad looks like he is always on the twoc 😂
Very interesting explore!
Great videos.
Thanks very much Matthew!
👍👍👍👊😎
Thoroughly enjoyed this series, brilliant work.
What are they continuing to dig for as it appear to be not being used for storage and they are not looking for seams of precious materials?
Old Bath stone quarries /mines were reused for cold war bunkers in this area . Although Bath stone is not as precious as metals or gem stones it simply needs cutting out and moving ; it does not have the expense of separation of ores for metal , or rock for gems , in simple terms . It is still mined as it is valuable as a building material , expensive as it may be . You did see some storage of cut blocks in the film and I suspect Matt and the others did not go everywhere in the tunnels or show all the film footage . Possibly the mining companies work in hand with the MOD ; most likely , of course , always did and will do !
Fantastic that matt really enjoyed watching it can't wait for more like this 😀 thanks for sharing this 👍🍻🏴
Was fantastic set of videos matt .absolutely brilliant matt xxx 👍👍👍
Well done matt fantastic as always
5:18 you should get little fibre optic cameras and drill a small hole through the walls
Bring on the next one Matt. That was a very interesting Journey. You sure bring to light what is truly going on underground. Look at the houses they are building on top of that maze. Like was mentioned earlier, if someone dropped a bomb in the right place the whole town would disappear into the ground. Bet they won't mention what is below when someone is buying one of their new houses. Boggles the mind. All the best to you all.
Are they mining it for the stone or mining it to build something new ?
3 Excellent episodes Matt👍🏻
That was an Epic exploration cheers Matt
woooow loved this ! cant believe what,s under our feet. great content.
been waiting for this 👌👌
amazing its a history doc now this video all getting buried under suburbia, great work old son!!!!! no one would have ever know whats under there property,
not watched it yet but looking forwards to it this matt back to his best , getting into the places they really dont want you getting into , and you have to wonder that with enough time could you explore different levels and get past some of the walled of areas by going up and down ?.
WE NEEDED A LOT MORE TIME. IF WE EVER GO BACK WE WILL TRY MORE CRAZY ROUTES
@@TheSecretVault i think you would have to spend a week there tbh , it looked a maze , where they have chopped through tunnels and old workings lol
@@TheSecretVault I hope you do go back. This is about as modern of a site as we will ever get to see. Though they will have no doubt found out about the video by now by one of their thousands of employees. I really like seeing the tech involved in these places.
Brilliant matt really in joyed them videos. Blown my mind away how big it is down there. Keep them coming man underground 👍✊✊✊✊👍
4:03 that slot in the wall next to the “A” that’s spray painted on looks to be open enough to see inside
Love it Matt!
Fantastic explore Matt really enjoyed this one!
This is why I love corsham, so many secrets!!
Will there be any more videos of this place!? 😁
There must be a big pump somewhere to push that amount of water that distance
Great video guys
FANTASTIC...
I don't understand why they have only one beam sensor rather than several so you can't just crawl underneath it close to such a sensitive area
Great work Matt!
👍👍👍👍👍👍👍👍👽👽👽
😊 wow ,what a big Massiv building , a master Peace , the works that Clean ,wow fantastic ! If the stone IS that easy to Work Out i do BELIVE that in the Future IT Takes Just a Startbutton and Computerprogrammed mashines are working similar spaces Out . 😅 Thanks for publishing the Video! 👍👷
really enjoyed the last few episodes..some great exploring.
Wow! gonna re watch this! I watrhed Red Door episode, great stuff thanks. I love Urbex and you do it so well! Thankyou!! I always hit the like button, I have a friend who has lovely Husky he is called Roscoe, Bet he would love to meet Angel. You even been on my door step, Predannack Airfield down in Cornwall! Been in same aircraft I been, I must edit and upload my video. Been a subscriber for couple of years now, Thanks Matt.
Brilliant work Matt & gang really enjoyed all 3 episodes 👏
Thank you so much Matt, Kept me entertained for sure!! Amazing too think that this all below us, Well for some of us maybe any way lol. I gotta a feeling there could be more down there?? But who knows?? 🤷 Cheers Matt 👍
We were very close to the most secure site in the UK... yes deinately could smell the MOD.
@@TheSecretVault 100% and with all them infer red sensors everywhere they definitely don't want you seeing or getting somewhere. I wonder where the tunnel went which had a sensor that was in the middle and you all turned around and went back?? Would that had gone further??? 🤔🤷
You really cant comprehend the shear size of the bunker, it is incredible. The MOD really could make a mint leasing space out to interested companies, the potential for film sets would make for an interesting venture that could bring money in for veterans families. Missed opportunity I think. Awesome stuff, well worth the wait.
Wow, that was really interesting 👍😊 loved it! Love the music
Every vid is always awesome!
More secret installations please 🙏
Your the only channel that I know that is as cool as this!
Let me know of other channels please!
Seriously Matt!
Thank you for what you do
✌️😎🇦🇺
Matt i loved this video another whats around the next corner or where dose that tunnel go seems theres a lot more down there to look at absolutely loved all 3 videos again thank you for going down there and filming it for us all
love your show.
my friends and i used to do
exploring in the 80s.
unfortunately we couldn't afford
a video cam back then,
and they were too massive lol.
all the best. SI.
Brilliant. Loved every minute of it. Thank you for a great video. Love you Matt. 🧡🧡🧡🧡
this place is massive, with the new activity, what are they building???
Just imagine the echo if BeFace was down there :-) :-) :-) banging content Matt! start a Patreon so we can donate more than just the cost of a membership...
Interesting Matthew Thank you very much
Was really gripped to all 3 parts. It makes you think about the stuff they keep from the public. Thank you for showing us what we never would of dreamed of seeing and probably no other person will. Great explore.
May e they left the light on and said " right it's Friday we're finish for the week got the weekend off so off to the pub...be back Monday 😂
Whilst the mining operation is probably genuine, something tells me that the MoD /CCC will snap up the new cleaner section at some point
All three amazing 😊
Great stuff Mr Williams and company, I’ll bet those maps are interesting 👍
Bit of ARUS…aka, "age related urbex syndrome" going on though…forgetting your welly boots, lens cloths and extra SD cards, it comes to us all 😂
So how do they get the heavy machinery in the area to complete work.
I'd imagine they lower it down that steep ramp by winch the same place you see I think in part 2 where they winch the cut stone blocks out on that cart 🤔
looks nothing like when i went there during exercises at rudloe..did you find the shops and pub?
interesting explore Matt enjoyed all 3 parts
Absolute love it. I'd love to have been there. Cheers Matt.
Great explore enjoyed these episodes 👍💯
Great series, your drone bit at the end is excellent as well. Best wishes.
Most enjoyable and interesting tour Matt. It does make you wonder it there are exits from some of those facilities into the quarry. Mind you if you were building them would you build in a disguised entry/exit point or keep them within the boundary of your secure perimeter?😮
Great video series Matt, incredible explore, edge of the seat stuff, very intriguing.
I just worry about the MOD 'erasing' you and 'zapping' us lot with the stare into the light thingy⚠️😲😳
What you were looking for still definitely has access, but you'd need a hole weekend exploring down there
yes indeed.
Mr vault if I could hit the triple like I would 👍👍👍
Truly amazing channel matt!!! 😎
Pollard Shaft, is I believe named after Nina Pollard and her husband, who ran Hartham as a guided tour a good while ago.
At any moment, you are expecting a mutant deformed being to step out of the shadows and take a bite at you 😂😂
Great video, love the ariel footage where it shows melksham in the distance , at 11,oclock i am at about 2 o,clock in the fog.
In west country parlance, those built pillars are called "slags" Hey have you tried Tillywhim caves down in Swanage, Enid Blyton wrote one of her books centred around those caves and they occasionally get opened by rascals who just happen by with bolt croppers to accidentally knock off the padlocks ;) Was a major smuggling centre run by Bournemouth rascally pirate John Gullivar whom Bournemouth council has done its level best to erase any memory of and believed his tall tales (very tall as he was a rotund fecund "gentleman") led to Verne semi basing a book on his acclaimed exploits and no coincidence that one of John's biggest whoppers was a tribe of pygmies who lived over the water of Sandbanks... in Lilliput :P
Very fascinating, thanks for taking us along Matt. =-D
So did you ever find the door to CCC emergency escape?
The Secret Vault
This is my first video
Well lads, look like hit the jackpot in this one!
1:11:21 Look, the Mushroom Overlords have yards! |O_O| That's just creepy, Wtfut do they need yards for . . . Lolz ???
So enjoyed these over the weekend shame you didnt get to the mod bit but loved it anyway.
1love mr vault. 1love
1:03:56 This is insidious 😢 How many mushroom peoples are they planning for ? ! !
Well I never thought of that 😅
I suppose if I was really smart I'd be hiding from the boolean operators . . . . . Laugh on dotted line -_-
Thanks for uploading! I really enjoyed all 3 parts of these!
The amount of material being moved underground appears enormous. Obviously, much is used to backfill and block spaces, but there still must be an excess. Does the MOD have a side business selling Bath Stone?
there probably is a company they sell the bricks to as a way to offset costs. otherwise it would be easier to simply crush the rock to move it.
How easy is it to get underground? I'm surprised there are no flight restrictions around these site. Awesome vids buddy.
I suspect the way we went in is now a lot more secure.
@@TheSecretVault Do you know any more similar places like this around the UK? Love the vlogs mate
Hi mate, is the camera mounted to your head? cool set up
No its a full size DSLR camera Gimbal with Sony A7S camera on it.
I thought it was heading to beyond the Red door 🤷 all three vids were good. But I got the impression it was more M.o.D
@thesecretvault An amazing video as always. Do you think there is a connection between the CCC and Box Tunnel? Sources says that "the only element of the complex that remains is the former computer centre and the visible north end of the tunnel has been sealed by concrete and rubble. " Surely there is a reason the CCC is so close to a mainline railway?