Due to difficulties in getting the index on the Mining History Network updated, at Roger Burt's suggestion have been looking for a new host.
There is now a link on the Trevithick Society www.trevithick-society.org.uk/
Click on the link at the foot of the home page.
The original site remains but is very out of date.
This covers mines, quarries etc worldwide, primarily from Cornwall & Devon newspapers, but also some Shropshire and Welsh newspapers.
I would always be glad of any additional references.
Alasdair Neill.