Hi Fionn, some old photos I took many years ago, 1968, around Barnsley. I believe the pit is Stanhope Colliery a couple of miles west of Barnsley by the old Silkstone Waggonway.
Silkstone Waggonway, Barnby Furnace
Silkstone Waggonway was a narrow-gauge industrial wagonway serving the Barnsley Canal, at Silkstone in South Yorkshire.
Stanhope Silkstone Colliery
Stanhope Silkstone Colliery, Barnby, Barnsley