Another "Huge Sinkhole" in Wales.

[Graigwen]

https://www.walesonline.co.uk/sport/rugby/rugby-news/huge-sinkhole-appeared-middle-welsh-23272924

.

 

[alanw]

https://maps.nls.uk/geo/explore/side-by-side/#zoom=18&lat=51.78878&lon=-3.17008&layers=168&right=osm

"Cokeyard Colliery", "Shaft"

 

[nickwilliams]

If that's 'huge' what is this which appeared on Hucklow Edge just after Christmas?:

http://www.tinpuffin.com/shs/220303/video/images/dji_0380r.mp4

 

[Speleofish]

Is that a mine collapse or a cave? It looks as if there's a passage leading off....

 

[alanw]

Is that a mine collapse or a cave? It looks as if there's a passage leading off....

https://maps.nls.uk/geo/explore/side-by-side/#zoom=19&lat=53.29891&lon=-1.72418&layers=193&right=BingHyb

Half way between two lead mines.

 

[pwhole]

Apparently you can't rely on rotten 18th century timber props to keep the surface in place

 

[AR]

Is that a mine collapse or a cave? It looks as if there's a passage leading off....

It's a mine collapse on the main Hucklow Edge vein, and mid-way between Have-At-All and Speed Grove mines, both of which have experienced shaft collapses in recent years.

 

[Graigwen]

https://maps.nls.uk/geo/explore/side-by-side/#zoom=18&lat=51.78878&lon=-3.17008&layers=168&right=osm

"Cokeyard Colliery", "Shaft"

...and the outcome predicted by alanw 
https://www.walesonline.co.uk/sport/rugby/rugby-news/sink-hole-nantyglo-rugby-pitch-23540565

 

[tomferry]

What a shame they are not harvesting the energy from the warm
Water inside their .