An interesting article on the cannel coal/oil 'boom and bust' from Flintshire.
http://www.bbc.co.uk/news/uk-wales-north-east-wales-35634837 Over the years, I've had a wander round where some of these works were, and most are completely gone, leaving only the 'lumps and bumps' on the ground. For some there are small piles of brick rubble. But nothing to indicate the sheer size of the industrial boom that went on.
Madness takes its toll, please carry exact change