excavation

noun

1.
the act of digging
delving dig up dig digging
Derived from:
excavate
2.
the site of an archeological exploration
archeological site dig
Derived from:
excavate
3.
a hole in the ground made by excavating
borrow delves
Derived from:
excavate
4.
the act of extracting ores or coal etc. from the earth
mining
Derived from:
excavate