I've always been intrigued as to the 'missing' central portion of Shackhole Scrin - or at least any surface indications, but I can't imagine the vein just stops and starts again, though I guess geology isn't an exact thing. The Google Earth image shows the bit I mean arrowed. The engine shaft we dye-traced is labelled as '1'. There's also the small vein in-between that and Faucet Rake that I've labelled '2', which doesn't have a name as far as I know. It may be nothing, but who knows around there? Also some of the shaft hillocks around where the Assault Course ends are enormous, and well off the main vein line - I've often wondered why this is so. They don't seem to have any accessible holes in them though. I've never been to the top of the Assault Course pitches, but I don't remember reading about any shafts coming in from surface there.
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