I noticed in 1970 when we did our survey that just inside the entrance to Shining Sough, "Eccles Caving Club Dig" was written on the wall, . I wondered if they had tried digging the final collapse as that looked a very interesting area or whether they only dug out the entrance level.
When about 200 feet in from the entrance, a cross passage is cut on what appeared to be Old Cross Vein, there poorly mineralized. An intermittent coffin level heads SW rather bendy for about 900 feet at which point ore bearing ground is intersected. A stope off to the S there had a floor shaft about 30 feet deep or more. That vein was about 3 inches baryte with a good rib of galena.
Continuing SW is a 5ft high passage on a 2 ft wide vein of calcite and red earth. Its roof was of gritstone slabs, laid sloping (left side lowest) with about 8 feet of deads stacked on top. Initially, this passage had been backfilled to only 2 feet high, then it was open for a short way, then backfilled to only about 15 inches high for 30 feet to a collapse of loose boulders through which there was a decent draught. The lack of space meant that a dig would have been very hard work so we left it (there was only me and Andy Hayes). I don't know whether anyone ever did tackle it. Gritstone slabbing deep underground indicates an important working.
Two roof shafts in the early part of the coffin gate had draughts down. It was an interesting level but we never returned to it.
I have to use the local library for internet access so will be off line over the weekend.