On the outskirts of Leeds at St Aidens was one of the biggest mining mess ups the country has ever known, yet not many know about it, probably as no-one died (I don't think).
They were using open cast for coal and went too close to the river Aire which burst into the mine completely filling it and ending all operations there. It's now a nature reserve.
The dragline is still sat there at the side, it's a Bucyrus Erie called Oddball and was once featured on 'Abandoned Engineering'.
If you use all those key words ^ in Google you'll be able to read all about it or watch on YT. How you'd find the programme to watch on TV I don't know, but it's out there.
It's quite an interesting story.