so is this the same hole 'fore they built the houses ? taken from the 'gallery' in the article
People are being urged to stay away after the cavity appeared at Nant Morlais in Pant, Merthyr, with council officers and police on the site working with other agencies.
www.dailymail.co.uk
there are hundreds of old workings up that area ... was on a site once, bottom end of Merthyr, that had a hole open up the night before I was supposed to be sat on the very spot with a crane ..... would've swallowed the Demag whole
.. apparently were tipping 20t loads into it, 10hrs a day, for weeks after ... IE built on top of it all now