Caves on Ynys Mon (Anglesey)?

[nearlywhite]

My references for this are fleeting (an NWCC presentation at HE a few years ago had 2 of these caves on the map - I believe one was a Porth-yr-Ogof, not the famous one though, on Malltraeth). I've heard from various local mine explorers that there are a couple of caves around, and not just the sea ones on the north coast! Something about a patch of limestone near Penmon and again something to the west. There are some caves on the Orme and Little Orme not too far away...

Anyone hear of anything?

 

[RobinGriffiths]

Loads of limestone. Not many caves. Gus Horsley did a bit on caving potential 20 or so years ago. So... limestone ridge adjacent to
Straits - nothing. Penmon area - resurgence at monastery. Also Fedw Fawr, 'pot' overgrown a few hundred yards from possible resurgence. Benllech area - Castell Mawr, several fragmented fossil passages of no great length with stal. Also a sink at Marian Glas reported by Gus, name of which I forget. See Tony Oldham's N Wales + Anglesey books. Proprietor of Stone Science told me of a sink + resurgence near Pentraeth but was not forthcoming with location.

Regards, Robin

 

[nearlywhite]

Thanks! I knew there was something. I grew up near pentraeth (hen llandegfan) and am now trying to think back to the river connecting the two! I'll let you know if I find owt this weekend

 

[Ian Adams]

I have scoured the coastline of Anglesey looking at the caves and, as you righty say, they are 99% small and insignificant (I think there are around 8 in the UCET knowledge bank somewhere).

http://www.ucet.org.uk/index.php/forum/21-knowledge-bank/645-anglesey-s-sea-caves


The Great Orme has a few but, again, not of great significance (more like rock shelters in some cases). Elephant Cave is actually a Limestone mine although there is a short cave in there. Sheeps cave is interesting, although it is just a nice grotto entrance, there is a tight crawl at the back on what appears to be glacial sediment. (These are in the UCET knowledge bank).

http://www.ucet.org.uk/index.php/forum/21-knowledge-bank/814-great-orme-cave-sheep-cave


The little Orme has around 5 worth having a peep but are (again) very short. One is interesting with an aven ....

http://www.ucet.org.uk/index.php/forum/21-knowledge-bank/847-little-orme-caves


Enjoy 

Ian