is the tallest mountain in the Kitami Mountains. It is located on the border of Shibetsu and Takinoue, Hokkaidà Â, Japan. It is the source of the Teshio River.
On January 6, 1978, Mount Teshio and the surrounding region was designated the .
Mount Teshio is composed of felsic non-alkali rock from 15 to 7 million years old.
At the base of the mountain there are abundant black woodpeckers as well as Japanese red foxes and Hokkaidà  brown bears. Near the summit, pika can be found.
Prominent alpine plants on the mountain are Rhododendron aureum and Diapensia lapponica.
Mount Teshio has been used to inspire the fictional location Teshio Ridge in the 2025 action-adventure video game Ghost of YÃ Âtei. In the game, it serves as the primary location where the player hunts the Kitsune, a member of the YÃ Âtei Six, the main antagonists of the game.
There are three climbing routes up the mountain:
There is a connecting path between the new trail and the other two trails.