The Mt. Mitsumine, also known as Mitsumine-zan or Miune, is situated in Jōetsu, Niigata Prefecture.
(there are existing other mountains in Japan known as Mitsumine, for example near Chichibu city (Saitama Prefecture) or on the Sado Island.
Japan 2011, Mt. Mitsumine in the background.
The stamp was issued in the sheet "Hometowns-Scenes in My Heart series 10"