Instead of rare ores appearing as nodes in cities and hamlets, ores and minerals are moved deep into the ground. In order to find and extract these resources players must do surveying and construct technical drawings of the next part of the mine to be excavated as the process goes on. Over time these mines can go deep into the ground and stretch out in several directions as well as beneath mountains and lakes. At some point the resources in the area has been exhausted and the mining operation moves on to a new area, leaving the old mine behind as a ruin which is quickly taken over by creeps, monsters and daemons. The creatures living in these ruins have a tendency to create traps protected by riddles and puzzles to protect themself and their camps where they typically keep their treasures and leftover minerals in small chests. It is not uncommon for these old mines to have several exits, providing a network of passages for explorers and scavengers. The technical drawings of the mine that was once actively excavated can show up as part of the lore as a rare drop long after the mine has been abandoned by the excavators. After a few years the mine exits will collapse and all traces of the old mine is gone forever.