Occurrence of Attributes in Original Text

The text related to the cultural heritage 'The Slate Landscape of Northwest Wales' has mentioned 'Mining' in the following places:
Occurrence Sentence Text Source
The Mining Journal estimated in 1859 that the Penrhyn quarries produced an annual net profit of GBxc2xa3100,000, and the Dinorwig Quarry xc2xa370,000 a year.
In the chambers, formed by slate extraction, sound and light is used to tell the story of the mine and mining.