Ikuno Magistrate - Ikunobugyo

Japanese: 生野奉行 - いくのぶぎょう

…During this time, depending on the prosperity and decline of each mine, the shogunate either directly managed the mine or contracted out miners to manage it. The Edo shogunate appointed the Ikuno magistrate in 1600 (Keicho 5) and the Ikuno magistrate in 1716 (Kyoho 1), and had them govern the mines and the surrounding territories (52,500 koku in 1751). Eight guard posts were set up in the silver mine territory, which consisted of seven cho (128 cho) of silver mines, to control access to and from the mines. …

From [Tajima Province]

...The area where the Ikuno Silver Mine was located became a direct domain throughout the Toyotomi and Tokugawa periods. Together with the 6,000 koku of land in the neighboring province of Harima, the total domain of about 37,000 koku came under the control of the Ikuno Magistrate (Ikuno Magistrate after 1716) as a village with a silver mine.
[industry]
The mining town of Ikuno, where the magistrate's office was located, is thought to have had a population of 20,000 at its peak in 1622 (Genwa 8).

*Some of the terminology that refers to the "Ikuno Bugyo" is listed below.

Source | Heibonsha World Encyclopedia 2nd Edition | Information

Japanese:

…この間，各鉱山の盛衰に応じて，幕府直営，山師請負の経営が行われた。江戸幕府は1600年(慶長5)から生野奉行，1716年(享保1)から生野代官をおいて，鉱山周辺直轄領(1751年5万2500石)とともに支配させた。そのうち銀山7町からなる銀山領には8ヵ所の番所が設けられ，出入りを統制した。…