The Doerfein Mining Quarter is a series of mines spread throughout the Doerfein Mountains southeast of Yuell.
As one of the richest ragnite mining regions in Gallia, the area has been mined extensively. Production is still high, with many workers engaged in the excavation. Darcsens were once forced to work there in poor conditions, but this has improved, particularly since Cordelia was made Archduchess. Many Darcsens still work there, however. Since the rebellion, it became a base of Darcens resistance against rebels.