Yomase Onsen is located on the south-eastern slopes of Mt Kosha in Yamanouchi town, in the north-eastern region of Nagano Prefecture. In recent years it was one of the connected ski hills on the north, east and southern slopes of Mt Kosha that make up 'Mt Kosha’ and a lift ticket was available. However, it appears that it is no longer part of the group and not included in the joint lift tickets.
In the regions surrounding Mt Kosha, Myoko and Madarao Kogen are to the west, Nozawa Onsen is to the north and Shiga Kogen is to south west. At the time of writing (early December 2016) it is unclear if Yomase Onsen will actually open for the 2016-2017 season. We will update this when more information is available. In the meantime, information on this page is from the 2015-2016 season.
Nagano Prefecture is located in the Chubu region of the main island of Honshu. Most of the Northern Alps, Central Alps and Southern Alps are located within Nagano (along with neighbouring prefectures). Nagano has the second highest number of ski and snowboard resorts in all of Japan and they are spread around the whole prefecture. Nagano city and many of the major ski resorts are located in the northern region.
12.6km from the Shinshu Nakano IC on the Joshinetsu Expressway
16.6km from the Toyota Iiyama IC on the Joshinetsu Expressway
18.2km from the Obuse PA Smart IC on the Joshinetsu Expressway
Nearest national route: Route 403 (0.5km away)
Yomase Onsen is about 0.5km off Route 403 on the southern slopes of Mt Kosha.
The Shinshu Nakano IC exit on the Joshinetsu Expressway is less than 13km from the ski hill.
We are currently in the process of updating ski resort information for the upcoming 17-18 season. Please note that as of the beginning of October, much of the information is still for the previous season - though you should be noticing updates over the coming weeks. All information should be freshly updated by the end of November. (Updated: 2nd October 2017)
For more details and explanations about the information presented on this page,
please read this.
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