Geography
Municipalities
Mergers
History
*1897: Otaru Subprefecture, Iwanai Subprefecture, and Suttsu Subprefecture were established. *1899: Kutchan Village (now Kutchan Town and Kyōgoku Town), Abuta District were transferred from Muroran Subprefecture (now Iburi Subprefecture) to Iwanai Subprefecture. *1899: Otaru Subprefecture, Iwanai Subprefecture, and Suttsu Subprefecture were merged to form Shiribeshi Subprefecture. Makkari Village (now Makkari Village, Kimobetsu Town, and Rusutsu Village) and Kaributo Village (now Niseko Town), Abuta District were transferred from Muroran Subprefecture.External links