For Roger.
The Electric mountain houses the Dinorwig power station.
Behind the mountain is its source of power.
This runs through the mountain into the lake below.
Once it used to be the hive of activity in slate quarrying and cutting and the national slate museum is close by.
This is the old cutting building.
The landscape around the area is so unusual it was used in the last make of the film Clash of the Titans.
Much more on Google.
grass grows by the inches but dies by the feet.