Chateraise Ski Valley Koumi is a ski area located in Koumi Town in the central-eastern region of Nagano Prefecture.
This ski area was known as Koumi Re-Ex Ski Valley until September 2022.
There are five ski lifts at Chateraise Ski Valley Koumi - one 1,337m quad lift and four pair lifts (497m, 572m, 641m, 456m). In addition, there is a 170m 'cable car', a short funicular railway connecting the base with the hotel by the side of the lower slopes.
'New winter sports' (defined by the ski area as 'snow scoots, snow drive, Swaky, etc') are allowed on the Number 2 and 5 pair lifts and associated runs - on weekdays from mid-January through early March.
Chateraise Ski Valley Koumi is operated by the same company that operates Chateraise Ski Valley Nobeyama. (That ski area also changed its name in 2022. It was previously known as Chateraise Ski Resort Yatsugatake).
Mountain
statistics
Top/peak (m)
1780
Vertical (m)
380
Bottom/base (m)
1400
Beginner runs (%)
40
Intermediate runs (%)
50
Advanced runs (%)
10
Longest course (m)
2500
Steepest slope (°)
32
Number of courses
8
Ski lifts
5
Ropeway cable car
0
Gondola
0
Quad lift (4-person)
1
Triple lift (3-person)
0
Pair lift (2-person)
4
Single lift (1-person)
0
Surface lift
0
Information
Normal season dates
Chateraise Ski Valley Koumi usually plans to be open from mid-December until late March or early April. See below for the actual opening and closing dates in recent seasons.
Normal opening times
Chateraise Ski Valley Koumi is normally open from 8:30am until 4:30pm on weekdays and from 8:15am until 4:45pm on weekends and holidays (lift operations). The 'cable car' is free and open from 8:30am until 4:30pm on weekdays and 8:00am until 5:00pm on weekends and holidays. The Number 4 pair lift operates from 7:15am on Sundays between 1st February and 1st March March 2026.
Night skiing
There is no night skiing at Chateraise Ski Valley Koumi.
Attractions
There are a few 'attractions' including the Rail Park, SAJ-approved mogul run and pole training.
Families & children
The Kids Park features a sledding area and other playing-in-the-snow activities and located by the 'cable car'. Entry is 500 yen.
Lessons
Ski and snowboard lessons are available at this ski area. There is also a special Freestyle Ski School.
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: 4,800 yen
Child: 3,500 yen
Senior: 3,800 yen
Half day
Adult: 3,800 yen
Child: 2,500 yen
Senior: 2,800 yen
Early AM (7am-8:30am)
Adult: 2,000 yen
Child: 1,500 yen
Senior: 1,500 yen
1 lift coupon
Adult: 900 yen
Child: 900 yen
Senior: 900 yen
11 lift coupons
Adult: 8,000 yen
Child: 8,000 yen
Senior: 8,000 yen
Season ticket
Adult: 50,000 yen
Child: 35,000 yen
Senior: 40,000 yen
Cheaper tickets are available online and also for early and late season.
A number of special family lift tickets are available:
Family A set ticket (1 adult and 1 child) - 7,300 yen on holidays
Family B set ticket (1 adult and 1 children) - 10,300 yen on holidays
Family C set ticket (2 adults and 1 child) - 11,600 yen on holidays
Family D set ticket (2 adults and 2 children) - 14,600 yen on holidays
The season ticket is valid at both Chateraise Ski Valley Koumi and Chateraise Ski Valley Nobeyama.
A one day lift ticket at one of the two ski areas can be exchanged for a one day lift ticket at the other (on the same day).
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: 15th December - 25th March (101 days)
2024-2025 season: 14th December - 23rd March (100 days)
2023-2024 season: 9th December - 31st March (114 days)
2022-2023 season: 10th December - 25th March (106 days)
2021-2022 season: 11th December - 3rd April (114 days)
Deepest recorded snow depth
2025-2026 season: 70cm on 8th-25th February
2024-2025 season: 95cm on 21st February to 12th March
2023-2024 season: 75cm on 9th-19th February
2022-2023 season: 85cm on 13th-18th February
2021-2022 season: 105cm on 14th-16th February and 21st February to 13th March
2020-2021 season: 90cm on 9th-15th February and 18th February to 4th March
2019-2020 season: 75cm on 8th-22nd February and 27th February to 8th March
2018-2019 season: 80cm on 5th-22nd March
2017-2018 season: 115cm on 1st-5th March
2016-2017 season: 100cm on 25th February to 14th March
2015-2016 season: 80cm on 22nd January to 14th February
2014-2015 season: 140cm on 20th and 22nd-26th February
Resources
Weather & snowfall (Japan Meteorological Agency) [open in new window]
Introduction to the region
Nagano Prefecture is located in the Chubu region of the main island of Honshu. It is one of only eight landlocked prefectures in Japan, bordered by Niigata, Gunma, Saitama, Yamanashi, Shizuoka, Aichi, Gifu, and Toyama.
Nagano Prefecture is sometimes referred to as 'the roof of Japan' because of the steep, rugged terrain of the many 2,000-3,000m mountains that comprise the Japan Alps. The Northern Alps are located along the northwestern region bordering Gifu and Toyama. The Central Alps are in the southwestern region, and the Southern Alps are along the southeastern border.
After Hokkaido, Nagano Prefecture is home to the second-largest number of ski areas in Japan. It has multiple world-class winter sports resorts within its boundaries, and some were venues for the main events of the 1998 Nagano Winter Olympics. There are ski areas throughout the mountains of Nagano Prefecture, but the majority are in the northern and central regions.
There are a number of ski areas in the highland region near Lake Shirakaba, between Mt Kirigamine and Mt Tateshina, and within Chino City, Tateshina Town, Nagawa Town and Suwa City. The region usually enjoys a relatively large amount of clear weather conditions during the winter. As a result, it generally receives less snowfall than some other highland areas.
Chateraise Ski Valley Koumi is the only ski area currently operating in Koumi Town.
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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