Raven's Mine

The first in a series of gigantic cavern mines by Raven. Located outside of Newton, southwest assuming the map I've got is oriented north-south, along a cobble road of unknown origin. On a peninsula near a towering lighthouse. Very little of anything aboveground, dropped right into a large antechamber. From there it essentially ran straight down into a natural cave system. Incredibly extensive, but not quite as big as the one on Bravo.