Ok, thanks, but not Buckden Gavel.
I'll describe the journey, maybe that will ring a bell...Road ran up the right of the Dale & then crossed to the left. Close to this point was where we parked & then on foot back down either a lane, or possibly a track. After a while there's a farmhouse close to the track & all underground gear was kept out of sight, as the farmer was "hostile" to potholer's. Around this point branched right across country, now climbing (but not the sort of climb to Buckden Gavel). Gap in memory, then at the mine site, access by what seemed like a collapsed stope, a bit dodgy, needed a rope to hang on to. In the mine it was pretty much as you see in the photo, a high stope with stemples. It opened out at the far end into a sort of chamber & I think turned to the left, which is where the wooden rail was.
To be honest, it struck me as the sort of place that was worth seeing...but only the once.
The Dale was one of the slightly lesser ones, almost certainly not Wharfedale...
Regards, John...
Huddersfield, best value for money in the country, spend a day there & it'll feel like a week........