amount
angle
bolder
bulk
construction
drive
empty
environment
fill
filler
filling
grade
gradient
granite
gravel
hard
heap
hill
incline
industrial
industry
lot
mass
material
mineral
mound
mountain
outdoor
outside
packing
pebble
pile
pit
putty
raw
rock
site
slope
sorted
stone
sunlight
sunshine
tool
top
tractor
trailer
vehicle
volume