A hatamoto (direct retainers of the bakufu, which is a form of Japanese feudal government headed by a shogun) was appointed as the daikan, and he administered Tajima Province, Harima Province, as well as Mimasaka Province which were the hinterlands of Ikuno Ginzan Silver Mine.
代官には旗本が任命され、生野銀山の後背地となっていた但馬国、播磨国、美作国の天領も統治した。