掘

excavation

digging out

inquisitively

inquisitively

mining

well digging

to dig

illegal digging

prospecting

(lucky) find

dig site

excavation (usu. archeological)

erection of a pillar by sinking it directly into the ground

prospector

hut

tunnelling (through)

to burrow through

miner

a well

mining site

excavation team

prospecting rights

bareback sex (esp. male gay)

mining rights

artesian well

excavator

tunnel boring machine

pillar sunk into the ground

to dig into

mining

post in ground (construction)

oil rig

to dig through

Scaphopoda (class of molluscs comprising the tooth shells)

overmining (e.g. of coal)

to undermine

draining a pond, lake or ditch (esp. to remove fish, purify water, etc.)

drillship

surface mining

exploratory excavation

underground mining

to perform anal sex (between men)

sunken kotatsu

to perform anal sex (between men)

scouring (of a riverbed or seafloor)

trench digging machine

excavation

to work out (a mine)

to fail to make timely preparations

test pit

gravedigger

to dig down

to dig one's own grave

to dig up lotus roots

open-pit coal mine

underground coal mine

to strike (gold, oil, etc.)

uneducated monk

to dig up

to dig out

digging for sweet potatoes (esp. as an outing)

burrowing owl (Athene cunicularia)

to dig up

to each their own