Koshi Kogen is a ski area located in the Yamakoshi neighbourhood of Nagaoka City in the central region of Niigata Prefecture.
This ski area has one pair lift.
The ski area location used to be Yamakoshi Village. Along with a few neighbouring towns and villages, Yamakoshi Village became part of Nagaoka City in January 2005.
Yamakoshi has traditionally been known for traditional Japanese countryside scenery, koi carp and bullfighting. Sadly, the powerful Chuetsu Earthquake in 2004 severely damaged the village and wider region. It has since recovered and is a beautiful place to visit all year round.
Mountain
statistics
Top/peak (m)
444
Vertical (m)
104
Bottom/base (m)
340
Beginner runs (%)
50
Intermediate runs (%)
40
Advanced runs (%)
10
Longest course (m)
800
Steepest slope (°)
26
Number of courses
2
Ski lifts
1
Ropeway cable car
0
Gondola
0
Quad lift (4-person)
0
Triple lift (3-person)
0
Pair lift (2-person)
1
Single lift (1-person)
0
Surface lift
0
Information
Normal season dates
Koshi Kogen usually plans to be open from mid-December until mid-March. See below for the actual opening and closing dates in recent seasons.
Normal opening times
Koshi Kogen is normally open from 9:00am until 5:00pm in the daytime. The ski area is normally closed on Mondays and Tuesdays, unless those days are national holidays.
Night skiing
Night skiing is on Wednesdays, Fridays and Saturdays until 9:00pm. (Not on 31st December 2025, 2nd and 11th January 2026).
Families & children
There is a small kids area at the base of the ski area.
Lessons
Limited ski and snowboard lessons are available at Koshi Kogen.
Rental
Ski and snowboard equipment & wear rental is available.
Lift ticket prices
2025-2026 season Information for the upcoming 2026-2027 season will be added by December 2026
1 day
Adult: 2,000 yen
Child: 1,500 yen
1 lift coupon
Adult: 200 yen
Child: 150 yen
12 lift coupons
Adult: 2,000 yen
Child: 1,500 yen
Night skiing
Adult: 1,500 yen
Child: 1,000 yen
Season ticket
Adult: 18,000 yen
Child: 13,000 yen
Season ticket (night skiing)
Adult: 13,000 yen
Child: 10,000 yen
Historical snow depth data
The following ski season and official snow depth data have been independently compiled by SnowJapan for publication on this website. Where available, the data is updated annually after each ski season.
First and last dates of recent seasons
2025-2026 season: 1st January - 15th March (74 days)
2024-2025 season: 25th December - 16th March (82 days)
2023-2024 season: 23rd December - 17th March (86 days)
2022-2023 season: 24th December - 21st March (88 days)
2021-2022 season: 27th December - 21st March (85 days)
Deepest recorded snow depth
Data is unavailable for this ski area
Resources
Weather & snowfall (Japan Meteorological Agency) [open in new window]
Introduction to the region
Niigata Prefecture is located in the Chubu region of the main island of Honshu, and it is commonly associated with the Hokuriku subregion. The long Niigata coastline faces the Sea of Japan, and the prefecture borders Yamagata Prefecture, Fukushima Prefecture, Gunma Prefecture, Nagano Prefecture, and Toyama Prefecture.
Niigata played a significant role in the history of skiing in Japan. After Hokkaido and Nagano Prefecture, it is currently home to the third-most ski areas in Japan.
The ski areas of Niigata are scattered across the mountainous regions of the prefecture, and there is even one on Sado Island. The majority can be found in Yuzawa Town & Minamiuonuma City in the Chuetsu region and Myoko City in the Joetsu region.
Nagaoka City is the second largest city in Niigata Prefecture (after Niigata City) and is located in the central region of the prefecture.
Koshi Kogen is one of 3 ski areas currently operating in Nagaoka City.
About the information on this page
SnowJapan independently researches, checks and updates the information on this page at least once each year, in the lead-up to every ski season. We also update it whenever we become aware of other changes. The information published on SnowJapan is based on independent research using official Japanese-language sources and is not supplied by ski areas. If you are planning to visit a ski area, we recommend checking the official ski area website for the latest operational information. We take great care to keep the information on SnowJapan accurate and up to date. However, SnowJapan accepts no responsibility for decisions made based on information published on this website.
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