From publisher blurb:
is a printable dungeon floorplan compatible with any RPG/Dungeon-Crawl game. It can be used as a standalone gameboard, or combined with any same-scale tileset.
Consisting of 12 unlit rooms, and a lit mining tunnel, this versatile floorplan has many uses, such as a an abandoned mine, a haunted tunnel, new and suspicious excavations or wherever your adventures take you.
Dark Mines forms a 10 x 20 square area, and can be printed at 28mm and 25mm scale.