axe
cart
cartoon
coal
digger
digging
equipment
exhilaration
explore
extraction
exuberance
exultation
flat
gold
gold rush
golden
ground
illustration
industrial
industry
labor
mine
miner
mineral
mining
mountain
nugget
old
panning
pick
pickaxe
prospector
retro
rock
rush
search
shovel
spade
stone
tool
treasure
tunnel
vintage
wagon
wealth
western
working