Although bibliographies have appeared before, here is another one. This will include a lot of references from caving club newsletters & the like which probably have not appeared before, and also so far there are probably lots of sources not yet included which should be! Any additions always...

Did come across someone who was considering free diving a certain deep lake in a Devon cave. Hasn't done it yet & is still very much alive.

Met one of the lifeboat crew the other day, who is also a caver. Apparently the casualty fell from the top entrance of the cave, ending up on the floor - that must be a fall of perhaps 20m or so - breaking his ankle in the process. He attempted to freeclimb the bottom pitch - difficult without a...

http://rnli.org/NewsCentre/Pages/Injured-man-rescued-from-cave-by-St-Agnes-RNLI1.aspx This was presumably from Towanroath Cavern Previously heard of a caver falling off trying to climb up the difficult climbs out of the cave (pitches unless you are a good climber) & breaking an ankle, having...

I am not sure if there are any actual mine workings within the cave, the sections of man made tunnel seem more likely to have been access routes around the cliffs perhaps associated with the Hall and Parlour entrances (which are the area called Old Key, the site of an earlier unsuccessful...

The survey of this cave gives a length of 380m with a probably insignificant bit near the western entrance unentered during the survey, certainly longer than I was expecting. This appears to put it as the longest sea cave in Europe and 5th longest in the world.

Survey yesterday showed a length of about 380m with a big opening up to the right of the western entrance which we didn't go into. Locally called the Hall and Parlour, a name referred to by Tonkin c. 1710, which seems to refer just to the two largest entrances at the eastern end of the cave...

Found more stuff on Papa Stour caves, for anyone interested: Scottish Natural Heritage Commissioned Report 102 Site Condition Monitoring Surveys..of Papa Stour cSAC (2003) which includes surveys of the caves. Available online.

Judging from OS maps the length of the long axis of Stack o'Brough is about 170m.

On north coast of Cornwall. This cave can be explored with just some pools where you get wet feet at low water springs, and the entrances can be reached dry, but at other stages of the tide floods and can probably be swum or kayaked through but would be lethal in a big swell. Passages up to...

Currently this is quoted as Holl o Boadie on Papa Stour, Shetland, quoted as 300m or 400m long, the length probably originating from the 1878 6" OS map which shows a length of about 990 feet so 300m is likely to be correct. This has been copied onto even the most recent OS maps. A post on the...

A method I have used where I have also wanted to show the centreline or complete survey on OS maps of various dates is using a drawing programme & importing the maps (I use oldmaps as they are corrected to grid north & scale for pre national grid editions) & googlearth as screen prints. Bear in...

Has anyone imported survex data including the LRUD data into autocad? I know it has been used to import the centreline, but what we would like is to produce somethging like the survex 3d files which can then be used in professional mining software which is much more versatile than the survex 3d...

A return visit showed that the slope up at the back is very unstable, steep unconsolidated sand & boulders. I would only try & ascend further by bolting the left handwall so when the slope goes you don't go with it. There is a strong draught. According to local information it used to be possible...

http://www.barratthomes.co.uk/new-homes/city-of-plymouth/H600501-Reflections/

Work has been going ahead for about the last year, quite a few houses probably now completed. There were notices about development at nearby Radford Quarry where nothing seems to have happened, could that be what you had seen Pete?

They are currently in the middle of a major housing development, so yes they are easy to find and no there is no access at present. Currently the developers who will retain ownership of the quarry face are indicating that they are considering an access arrangement for cavers once the development...

The other day put a couple of survey legs into the Mousehole & getting the magnetic variation from the BGS site resulted in a negative correction - is this a first for a cave survey in the UK? see http://britgeopeople.blogspot.co.uk/2014/01/somethings-happening-to-magnetic-north.html

After yesterday's post looked at the most recent 1:2500 OS which shows a depression with a cave symbol near the coast road. This is no doubt the sink for the stream. It is labelled "quarry" on the first edition OS (ca 1877). This suggests that a stream cave has formed on the boundary between the...

Quick visit to this cave yesterday, needs another visit. Although there is a public footpath leading to the cave, this is not straightforward, first finding the start took some time (look for the public footpath sign with "not coast path" scratched on it). The last part of the path once had...