Related terms:
surface mining
mountaintop
coal seam
underground mining
valley fills
open pit
spoil
bagger
salt dome
excavator
tailings
lode
fills
overpressure
crushed ore
fill material
waste dump
lignite mine
big muskie
Wikipedia sources:
Coal mining
Mountaintop removal mining
Salt tectonics
Bucket-wheel excavator
Surface mining
Overburden Conveyor Bridge F60
Environmental impact of coal mining and burning
Mining
Blast shelter
List of unusual units of measurement
Salt dome
Overburden
Bunker
Toyota Production System
Oil sands
Open-pit mining
Grasberg mine
Dragline excavator
Dartmoor tin-mining
Well control
Bagger 288
Context for words:
overburden
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