X-JAM Takaifuji, often now known as X-JAM, is a ski area located on the eastern slopes of Mt Kosha in Yamanouchi Town in the northeastern region of Nagano Prefecture.
X-JAM has four pair lifts (1000m, 500m, 650m, 560m) and is particularly popular with snowboarders. It traditionally has one of the largest snow park areas in Japan.
At one time, there were five individual ski areas on this mountain. Not too long ago, there was an ambitious plan to promote them collectively as Mt Kosha, with an all-mountain shared lift pass. The ski areas are (north to south clockwise) The Kijima Snow Park, Snow Resort Romance no Kamisama, Yamabiko-no-oka, X-JAM Takaifuji and Yomase Onsen. The original Mt Kosha plan fell through, and the central section, Yamabiko-no-oka, is now closed (more information on SnowJapanHistory). In recent years, the only joint lift ticket available on the mountain has been for X-JAM Takafuji and the lift/course connected Yomase Onsen.
Starting with the 2024-2025 season, X-JAM and Yomase Onsen appear to be increasingly promoting themselves as one, more than they have before, and they share a website. The official joint name is Mt.KOSHA X-Jam Takaifuji & Yomase Onsen (Mt.KOSHA X-JAM高井富士 よませ温泉スキー場).
(Not wanting to further complicate matters, X-JAM Takaifuji used to be known as just Takafuji).
This region of Yamanouchi Town is traditionally known as Kita Shiga and two other separate ski areas (Ryuoo Ski Park and Kita Shiga Komaruyama) are nearby.
The popular ski areas of Shiga Kogen are to the southwest.
X-JAM Takafuji traditionally boasts one of the largest snow parks in Japan with close to 50 items across a four areas: X-JAM Main Park, Excite Park and Challenge Park.
There are several 'self-responsibility areas, outside the controlled area' of the ski area.
The Wanpaku Hiroba children area is near the base.
Ski and snowboard lessons are available at X-JAM Takafuji.
Ski and snowboard equipment & wear rental is available.
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X-JAM Takaifuji is normally open from 8:15am until 4:20pm.
There is no night skiing at X-JAM Takaifuji.
Kita Shita Kogen 12713-94
Yamanouchi-machi
Shimotakai-gun
Nagano-ken
381-0405