Underground mining operation with heavy machinery and layered earth cross-section.
Schlüsselwörter
underground,
mining,
mine,
excavation,
tunnel,
shaft,
machinery,
equipment,
loader,
dump truck,
truck,
heavy,
industry,
industrial,
earth,
geology,
layer,
strata,
rock,
ore,
mineral,
resource,
extraction,
digging,
subterranean,
cavern,
gallery,
passage,
working,
site,
operation,
engineering,
construction,
development,
exploration,
geologic,
diagram,
illustration,
cutaway,
depth,
quarry,
pit,
drilling,
blasting,
haulage,
transport
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