bank
blue
bucket
build
canyon
chalk
chalkquarry
clear
construct
day
deposit
dig
dirt
dragline
earth
earthmover
environmental
equipment
excavator
expand
extraction
gravel
green
ground
hilly
hoist
industrial
industry
landscape
large
machinery
mining
mountain
natural
operate
pile
pit
pond
quarry
rock
sky
stand
stone
summer
vehicle
walking
water
work