Subject
Mine development
3
Stratigraphy
coal waste dump reclamation
3
exploration activities
3
Cape Breton Coalfield, N. S.
2
Geology
2
Jubliee Deposit
2
Lead ores
2
Mineralization
2
Zinc
2
Zinc ores
2
Cape Breton Coalfields, N. S.
1
Coal fields
1
Drilling
1
Economic geology
1
Geology, Structural
1
Topography
1