The Quarry Mine is located in the Quarry, just north of the entrance.
Unlike the The Mines or Skull Cavern, if the player leaves the Quarry Mine then come back, everything will be how they left it. There is only one level (that is known).
Slimes and Haunted Skulls can be encountered, the former of which act similar to Bats.
There are some parts in the Quarry Mine that the player needs to have a gold pickaxe to go any further.
At the end of the area that can be accessed with a Steel pickaxe, there is a large statue resembling a 'Grim Reaper' that is holding a golden Scythe, which can be collected when clicking on the statue.
It is currently unknown what is past this area.