environmental
area
big
coal
construction
destruction
dig
digging
dump
dust
earth
energy
environment
excavate
excavation
extract
extraction
fossil
fuel
geology
heavy
hill
hole
huge
industrial
industry
iron
land
landscape
layer
material
mine
mining
open
open pit
openpit
pile
pit
pollution
primary
raw
reserve
resource
site
source
spoil
surface
waste
waste pile
wasteland