Mine Circuit, race track

Mine Circuit is a motorsport racing track located in Mine, Japan, designed to host competitive racing events. The venue features a full-length circuit with multiple corners and straightaways that accommodate different racing series and driver testing.

Opened in November 1972 as Atsu Circuit, Japan's tenth racing circuit, with a 1,300 m layout. Renamed Nishi-Nihon Circuit in 1976 after lengthening to 2,815 m, it became MINE Circuit in 1991 with a 3,330 m clockwise course. It hosted Formula Nippon, All Japan F3 and Super Taikyu until closing on 28 February 2006, when Mazda bought the site for its Mine proving ground.

The site is now Mazda's Mine Proving Ground, a closed test facility, so it cannot be visited as a circuit. Public access has been limited to registered events such as Mazda Correcione in 2009 and 2010, when the course was opened with a lead car for a single parade lap in unmodified cars. The former main gate was removed and its car park turned into an 80 m turning circle; the old sub-gate serves as the main entrance.