A Shingun (also called a Kamikori) is a special district type that came into existence with the establishment of the Kokugun system, and is considered to be the holly precincts of a shrine (domain of a kami), and differs from other types of districts.
神郡（しんぐん/かみこおり）とは、国郡制成立に伴い神社の神域（神の領土）として誕生した他郡とは違う特別な郡のことである。