Koshi Kogen is a small ski hill located in the beautiful surroundings of the former Yamakoshi village in the central region of Niigata Prefecture. On a clear day there are some fine views of Mt Sumon and other surrounding mountains to be enjoyed from the top course. Yamakoshi village suddenly became famous in late October 2004 when it bore the worst damage of the Chuetsu Earthquake that hit the region. The village has since recovered and is a beautiful place to visit all year round with lots of traditional Japanese countryside scenery. Yamakoshi is now part of Nagaoka city, the second largest city in Niigata Prefecture.
Niigata Prefecture is located in the central region of Honshu to the north of Tokyo and has a 250km long coastline facing the Sea of Japan. Convenient transportation links make Niigata very easy to get to from Tokyo and other surrounding regions. There are over 50 ski and snowboard resorts in Niigata Prefecture, ranging from small one-lift hills to some of the most well-known and popular ski resorts in Japan. While they are dotted around the mountains of the prefecture, most are concentrated in the southern regions - in particular the Yuzawa town and Minamiuonuma city area in the Chuetsu region and Myoko city in the Joetsu region.
13.7km from the Ojiya IC on the Kanetsu Expressway
17km from the Nagaoka Minami Koshiji Smart IC on the Kanetsu Expressway
20.2km from the Echigo Kawaguchi IC on the Kanetsu Expressway
Nearest national route: Route 291 (0.5km away)
Nearest prefecture road: Prefecture Road 474
Koshi Kogen can be found about 1km off Route 291, just by the side of Prefecture Road 474.
It is geographically to the east of central Ojiya city and to the south of Nagaoka city.
Ojiya IC is the closest IC exit on the Kanetsu Expressway but Koshi Kogen can also be approached from a number of other exits on the same expressway.
The ski resort information currently shown on SnowJapan is from the 2018-2019 season. Over the summer and autumn months we will be checking and then updating information. Everything will be updated online in time for the 2019-2020 winter season. Please note that planned ski resort opening dates are often very similar every year, so the dates from the 2018-2019 season can be taken as a good idea of what to expect next season.
For more details and explanations about the information presented on this page,
please read this.
It is very important to us that the information presented on SnowJapan is correct and up-to-date. Checks and updates are made throughout the year. If you find information that you feel needs checking and updating, please let us know by contacting us. We appreciate your support.