blue
bucket
canyon
chalk
chalkquarry
clear
construct
construction
contemporary
daily
deposit
development
dig
dirt
dragline
earth
environmental
equipment
excavation
excavator
extract
geology
gravel
ground
heavy
industrial
industry
landscape
machinery
mineral
mining
mountain
natural
pit
pour
powerful
quarry
rock
scenery
shovel
sky
soil
stone
tranquil
vehicle
walking
work