abandoned quarries
aerating
destruction of soil
dig
ecology
ecotourism
environment
environmental disaster
environmental problems
erosion
excavating
excavation
exploitation
exposed
forest
green
heavy
hill
hills
hillside
human activity
human influence
industrial
landscape
landslide
material
mine
mineral
mover
pine
pine forest
pit
protection
quarry
quarry area
quarrying
quartz sand
ravines
resources
root
rough terrain
sand
sand hills
sandy
soil
soil collapse
summer
trees
trunk
wood
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