Mori (森町, Mori-machi) is a town located in Oshima Subprefecture, Hokkaido, Japan.

[1][2] Mount Komagatake, an active volcano, is located to the east of Mori, and much of the town is part of Ōnuma Quasi-National Park.

The suffix "町", denoting town status in Japan, is pronounced as -chō in every municipality of Hokkaido with the exception of Mori, where it is read as -machi.

Mori sits on the eastern coast of the Oshima Peninsula and overlooks Uchiura Bay (30 kilometres (19 mi) in diameter).

Hokkaidō Komagatake 1,131 metres (3,711 ft) is an active andesitic stratovolcano on the east of Mori where the town borders the nearby municipalities of Shikabe and Nanae.

[7][8] Mori, along with the town of Nanae, shares a coastline on Lake Ōnuma (5.3 square kilometres (2.0 sq mi)).

Ōnuma and Konuma, which sit at the southern foot of Mount Komagatake, were created when mudflows from an eruption of the mountain dammed the Orito River.

[13][16] Kōbō Abe (1836 – 1908), a samurai and naval commander of the Tokugawa shogunate, lost the capitol at Edo to forces loyal to the Meiji Emperor as 1868 as part of the Boshin War (1868 – 1869).

Enomoto fled from Edo and landed his fleet of eight steam warships, the remainder of the Tokugawa Navy, a Washinoki en route to establishing a base at Hakodate.

Enomoto and the republic were soon defeated in the Naval Battle of Hakodate (1869), and all of Hokkaido, including the villages of Mori, came under the rule of the central Japanese government.

The volcanic ash from Mount Komagatake has created a rich soil for fruit and vegetable production in Mori.

Route 5 runs north through Yakumo and Oshamanbe and then veers east towards the Shakotan peninsula and into the town Otaru before connecting to Sapporo.

Mori Station bentō vendor Abe Bentōten invented ikameshi in 1941 as a result of food rationing during World War II.