The photo below of Dirtlow Mine roughly corresponds to the Chatburn photo in that PDHMS article, though I think he may have stood on the nearest shaft-top as you can't get that high up now. The overgrown crushing circle is just discernable in the foreground, and the engine shaft is in the far corner with a huge grille over it - and there's a grilled climbing shaft about 10m nearer the camera from the engine shaft but it's hidden in the grass in this shot. There are more small shafts nearby under manhole covers with numbered stone marker posts.
Also a shot of the Dirtlow engine shaft through the grille - it has a very wide 'funnel' top, like the Burton mine shots, and then narrows to a 'regular' sized elliptical shaft. It looks blocked here but as I remember there's a slight angle ten or so metres down. We really should have a look down there, if only for documenting the current depth.