Miner Greg wrote:
Interesting to find such old Coal Mines in remarkable shape. Many of the Bituminous mines in Pennsylvania are long collapsed or caved when only being 20 years old. There probably is a big difference in the rock strata in your area verse the rock strata in the bituminous mines here in the US. How are the conditions of other coal mines in your area?
Miner Greg
Hi Greg,
The newer more modern the workings post 1950's, the more difficult it is to find access into them and when you do, water is never to far away!
The older workings we have access to (pre 1950's drifts) are all pillar and stall workings with props used as a last resort. The older workings in the UK certainly offer more potential for the coalmine explorer.
Looking at the wealth of drift portals that you have in the States makes us in the UK extremely jealous!!!
What is the average lifespan of a drift mine in the States, looking at the date stones a lot of them are dated from the 30's to the 50's? How come the government don't seal the entrances? Over here as soon as they close all traces of mining are erased!!
My Flickr site.
http://www.flickr.com/photos/b3tarev3/s ... 037747999/