Greyspine Quarry is owned by House Greyspine. The mine itself is made up of three deep holes that stretch far into the side of the mountain going down. As the mine is dug out, Kraghammer slowly begins to build up in areas that are no longer in use, thus allowing the city to expand downwards. Many mining buildings stretch around the center of the quarry. There are also a series of tunnels that go off to the sides of these main tunnels, often times dwarves will come across a goblin den that needs to be cleared out.