Koshi Kogen Ski Area is a ski area in Niigata, Japan. The terrain spans roughly 282–401 m above sea level. The mapped ski area covers about 0.6 km². Within 2.5 km of the centre, the map shows 5 marked runs and 1 lift, totalling about 1.7 km of piste. There is no settled snow at the moment — the season has not started here yet. Over the last three winters the ERA5 reanalysis gives it 491 cm of snowfall a season, 78th of the 3,112 ski areas we measure worldwide. The model runs well below what resorts report, so the ranking is the meaningful part rather than the centimetre figure. The nearest city of any size is Niigata, about 69 km away. 1 official live camera is linked below. 129 other ski areas lie within 120 km. Snow figures and the Powder Score are recalculated every day.
Elevation range is estimated by sampling points across the ski area.
Score breakdown
Powder Score v1.0.0
7-day outlook
| Date | Snow | Temp | Wind |
|---|---|---|---|
| 🌦️ 27 Sept | 0 | 16.4 / 23.2 | 5 |
| 🌧️ 28 Sept | 0 | 17 / 20.6 | 5.9 |
| 🌧️ 29 Sept | 0 | 14.4 / 19.6 | 6.1 |
| 🌤️ 30 Sept | 0 | 14.1 / 22.3 | 7.2 |
| 🌦️ 1 Oct | 0 | 12.2 / 21.4 | 15.7 |
| 🌧️ 2 Oct | 0 | 11.2 / 16.2 | 18.6 |
| 🌤️ 3 Oct | 0 | 10.5 / 17.4 | 8.7 |
Runs and lifts
Counted from the runs and lifts drawn on OpenStreetMap, within the boundary of the ski area. These are not the resort’s own published figures.
Run map
The shape of the mountain
Which way the slopes face
94% of the vertical on the runs descends to the north or east. Those slopes get the least sun, so the snow lasts longer.
By difficulty
Lift types
- Chairlift1
See past trail maps on Skimap.org ↗
Source: OpenSkiMap (© OpenStreetMap contributors, ODbL 1.0). How finely ski areas are drawn varies by region, so treat the counts as indicative. Vertical is the difference between the highest and lowest points of the mapped runs and lifts.
Live Cameras
This ski area does not put a camera on its own slopes. The nearest live view is the road below.
Road conditions decide whether you can get there at all. Check before you leave.
Footage remains the copyright of each operator. JAPANSNOWLINE neither stores nor redistributes it.
How much snow it gets
Measured by us across 3,112 ski areas by one identical method. These are not the resort’s own published figures.
The tick marks the median across the 395 Japanese ski areas. All four bars run the same way — longer is better.
The quality score deliberately excludes how much snow falls — it uses temperature, frequency, rain and wind. Snowing a lot and snowing well are different things.
Compared with what is nearby
Within 50 km straight line. Measured the same way, so the ranks compare directly. Ski areas a few kilometres apart share a weather grid cell and can return the same figure.
| Ski area | Distance | Seasonal snowfall | World rank |
|---|---|---|---|
| Nagaoka City Ski Area | 11 km | 411 cm | 161 |
| Suhara Ski Area | 11 km | 562 cm | 50 |
| Koide Ski Area | 12 km | 438 cm | 132 |
| Yakushi Ski Area | 13 km | 586 cm | 47 |
| Hakkai Sanroku Ski Area | 19 km | 492 cm | 75 |
When it falls, and how winters differ
Month by month
Month by month, the most snow falls in January. March brings 22% of January’s snowfall. That is a steeper fall than the median for ski areas in Japan (51%): the snow here is concentrated early in the season. In amount, March brings 35 cm, less than the median of 45 cm.
Hot springs nearby, as analysed
1 hot spring sources with published analyses lie within 5 km of this ski area, nearest first (the hottest is 13 °C).
| Source | Distance | Temperature | pH | Type | Analysed |
|---|---|---|---|---|---|
| 小栗山鉱泉小千谷鉱泉？ | 3.7 km | 13℃ cold | — | simple | — |
These are analyses of hot spring sources, not a list of baths you can visit. They date from 1910 to 2005, many from decades ago, so today’s temperature and chemistry may differ. Names are as recorded in Japanese. Temperature and pH bands follow Japan’s standard for analysing hot springs.
Source: processed from the hot spring analysis data in the Geothermal Information Database (GRES-DB), Geological Survey of Japan, AIST
Worth seeing nearby
Places within 20 km of this ski area, for a day off the slopes or an evening. Chosen from those most read about on Wikipedia, favouring places with an English Wikipedia article, and listed nearest first.
| Place | Type | Distance |
|---|---|---|
| Uonuma Shrine魚沼神社 | Shrine | 8.7 km |
| Niigata Prefectural Road Route 50新潟県道50号小出奥只見線 | Landmark | 11.5 km |
| City Hall Plaza Ao-re Nagaoka長岡市シティホールプラザアオーレ長岡 | Landmark | 14.8 km |
| Nagaoka Station長岡駅 | Landmark | 14.8 km |
| Nagaoka Castle長岡城 | Historic site | 14.9 km |
| Echigo Hillside Park国営越後丘陵公園 | Park | 17.1 km |
Based on the Japanese Wikipedia lists of sights in each prefecture, as compiled in travel-log-data (CC BY-SA 4.0). English names from Wikidata (CC0). The content of this section is available under CC BY-SA 4.0.
Map
Where it sits relative to nearby resorts. For a piste map, see the official site.
Official piste map ↗Places to stay nearby
8 properties on Rakuten Travel lie within 3 km of this ski area, listed cheapest first.
| Property | From | Rating | Distance | Getting there |
|---|---|---|---|---|
| ホテルサンローラ＜新潟県長岡市＞ | ¥3,000 | 4.39 243 reviews | 5.6 km | 越後川口ＩＣより車で10分！ＪＲ越後川口駅より車で5分！長岡市街・十日町・魚沼方面へのアクセス良好！駐車場は無料です。 |
| 蓬平温泉 蓬莱館 福引屋 | ¥3,500 | 4.04 174 reviews | 5.8 km | 長岡南越路スマートICよりお車で約20分／長岡ICよりお車で約30分／長岡駅からお車で約25分／長岡駅より送迎有・要予約 |
| Ｌ－Ｓｔａｙ小千谷 | ¥3,960 | 4.57 49 reviews | 7.3 km | 関越自動車道小千谷ＩＣよりお車で約７分、小千谷駅より約４分、徒歩で約２３分 |
| ビジネスホテル ニュープラザ | ¥6,050 | 4.03 426 reviews | 7.8 km | ＪＲ上越線・小千谷駅より車で5分／関越道・小千谷ＩＣより車で5分／関越道・川口ICより車で10分 |
| 蓬平温泉 花の宿 よもやま舘 | ¥15,400 | 4.70 197 reviews | 5.3 km | ・南越路スマートＩＣより県道蓬平温泉方面へ約20分 ・長岡ＩＣより国道8号線バイパス、途中県道蓬平温泉方面へ（約40分） |
| よもぎひら温泉 和泉屋 | ¥17,600 | 4.61 349 reviews | 5.7 km | 長岡駅よりお車にて２５分 |
| 小千谷ふるさとの丘ユースホステル | — | — | 3.9 km | 小千谷駅よりバス・タクシーで10分／小千谷ICよりお車で15分 |
| 小千谷パーク | — | — | 7.9 km | 関越自動車道 小千谷ICより車で5分／上越線 小千谷駅より車で5分 |
Contains advertising · Property data by Rakuten Travel (Supported by Rakuten Developers)
Stay nearby
7 places within 12 km of the slopes. Most of them do not take online bookings — open the map for contact details.
Accommodation data: OpenStreetMap
More places to look
Updated: 26 Sept 2026, 23:28