aluminium

antique

clay

cobble

contemporary

creek

current

digging

erosion

flow

fortune

found

geology

gold

hand

hiking

hipster

hunter

male

mammon

man

metal

mine

mineral

modern

nature

nugget

outdoors

pan

panning

past

prospecting

prospector

richness

river

riverbed

rock

rocky

rubble

rush

sand

sediment

sluice

stone

stream

treasure

vintage

water

wealth

working