Hello I'm new to this .i am wanting to find out as much info about Wheal Margery Mine .i am trying to stop a de elopement going ahead in the grounds of Treloyhan Manor Hotel in St Ives Cornwall .please if anyone out there can show/ give me any pictures and information , I would be so very very grateful

The deep adit goes in from a little cove north of Porthminster Point. On the cliff top above are covered over shafts including America Shaft open underground.

The adit continues inland passing under the railway and eventually connects with a shaft in the grounds of the hotel. According to BGS is continues for another 165 fathoms (330 yards) inland but this is not accessible underground due to falls just the other side of the shaft.

I have a rough sketch survey I did about 1992 somewhere if I can find it later today. No promises as I have stuff to get ready to go away for Easter.

I don't know what you are trying to do and I don't take sides, but if there is a request for information I give it to best of my ability.

A chap who posts on here Stu will tell you more if he is around.

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Hello Roy Fellows, thank you so much for replying to my request for information .
https://www.facebook.com/RachaelOwl 
Stu contacted me and he is hoping to come and make a visit when he gets a van ,

My van got stolen and torched, which has been most inconvenient. Thankfully, as they chucked things out of the back (it was like a jumble sale in there) my Magnumstar Mega-Lamp was one of the items to not be nicked or torched.

Sadly, a lot of other stuff went up in smoke.

As I've said elsewhere, the Marjory adit system is very extensive. It is unclear whether certain workings were planned or actually undertaken. One thing which is certain is that the official abandonment plans are in 2 chunks. The latter chunk is focused on the seaside area around american shaft and the earlier chunk shows a lot more detail, including a detailed section showing 3 adit levels (above water) and a fair few shafts. The 1880 first series OS map was compiled after the whole lot had been obliterated.

The first chunk of the Marjory plans shows a lot of detail which can be accurately projected (as accurate as it was surveyed, anyway) onto modern mapping. This will overlay a whole load of previous workings on various structures, some of those with their own ancient and unrecorded features to add up to a complicated picture which should pose a cause for concern to developers....

Whilst the shafts were probably capped with granite lintles at depth and backfilled, you can never be sure how they did it. My gut feeling is that if you go poking around in there and do a bit of informed digging around certain areas (which will sort of reveal themselves to someone prone to hunches) you might find some shallow levels. Anyone with a digger is almost certainly to do so.

Getting in there via the deep adit should be a project that a load of locals do every week. It has the potential to be an amazing journey into the truth behind the detailed, if rather vague records.

S

My van got stolen and torched, which has been most inconvenient. Thankfully, as they chucked things out of the back (it was like a jumble sale in there) my Magnumstar Mega-Lamp was one of the items to not be nicked or torched.

Sadly, a lot of other stuff went up in smoke.

As I've said elsewhere, the Marjory adit system is very extensive. It is unclear whether certain workings were planned or actually undertaken. One thing which is certain is that the official abandonment plans are in 2 chunks. The latter chunk is focused on the seaside area around american shaft and the earlier chunk shows a lot more detail, including a detailed section showing 3 adit levels (above water) and a fair few shafts. The 1880 first series OS map was compiled after the whole lot had been obliterated.

The first chunk of the Marjory plans shows a lot of detail which can be accurately projected (as accurate as it was surveyed, anyway) onto modern mapping. This will overlay a whole load of previous workings on various structures, some of those with their own ancient and unrecorded features to add up to a complicated picture which should pose a cause for concern to developers....

Whilst the shafts were probably capped with granite lintles at depth and backfilled, you can never be sure how they did it. My gut feeling is that if you go poking around in there and do a bit of informed digging around certain areas (which will sort of reveal themselves to someone prone to hunches) you might find some shallow levels. Anyone with a digger is almost certainly to do so.

Getting in there via the deep adit should be a project that a load of locals do every week. It has the potential to be an amazing journey into the truth behind the detailed, if rather vague records.

S

Sad to here about yer van buddy, you can't educate pork I'm afraid, chin up anyways, that aside I hope all's well.

Lozz.

You can't educate pork, but you can chuck 'em down a shaft!

You can't educate pork, but you can chuck 'em down a shaft!

Maybe some of the stuff will turn up on Ebay, always worth checking from time to time, that aside I sympathize with your plight having been the victim of want and destruction in the not to distant past.

Lozz.