Japan's biggest ski area is on Ikon, and it looks like seventeen small ones

Ask which pass to buy for Japan and you get an answer about Epic, Ikon, Indy and Mountain Collective, because those are the products written about in English. They are real and they matter — we have counted what each one reaches. But they are not how Japan sells skiing, and a visitor who only knows them will walk past the ticket that was designed for the trip they are taking.

This is what the Japanese operators' own pages say. Every figure below is quoted from the page that sells the thing, in the season it is being sold for, on the date at the top.

Start with the seventeen hills that are one mountain

Our data holds seventeen Japanese ski areas with these names, all of them on Ikon:

Seventeen entries. Ninety kilometres of trails and forty-eight lifts between them. The biggest is sixteen kilometres, which reads as a pleasant local hill.

They are all Shiga Kogen. The operator's own ticket page puts it plainly:

「1枚の共通リフト券（キーチケット）で、全18スキー場の45基のリフト・ゴンドラすべてをご利用」 — one common lift ticket, the key ticket, gets you all forty-five lifts and gondolas across all eighteen ski areas.

Eighteen to our seventeen, forty-five lifts to our forty-eight: the operator and the map disagree slightly about where one area stops and the next begins, which is the honest state of this kind of data. What they do not disagree about is that it is one mountain. Ski across it and you never take a ticket out of your pocket.

Ninety kilometres would make it the largest ski area in this dataset, in Japan, by a wide margin — the biggest single entry today is Niseko United at 59 km. It is drawn on our map as seventeen dots.

The 2026-27 window price is ¥18,500 for two days and ¥27,500 for three; online it is ¥16,500 and ¥24,500, with online sales opening 1 November. There is a season pass as well, on sale from 1 September.

Then the pass nobody has written about in English

Shiga Kogen's own news page carries a line that turns out to be a whole product:

「長野県北部 7スキー場で冬季シーズン滑走可能な 2026-2027共通リフトシーズン券『NAGANO7 Powder Dream Pass』」 — a joint lift season pass valid at seven ski areas in northern Nagano for the 2026-27 winter.

It was NAGANO 6 until this season. A seventh area joined and they renamed it.

¥140,000〜 for an adult, ¥110,000〜 for children and under-18s, tax included, no IC card deposit. The tilde is doing work: that is a floor, stepping up through 超早割 and 早割 windows to a regular price. Bank transfer takes ¥2,000 off during the early windows.

At roughly a thousand dollars this sits beside the full Ikon Pass, and for a season spent in northern Nagano it reaches places Ikon does not: four of those seven — Nozawa, Madarao, Ryuoo and Romance-no-Kamisama — are on no pass we track at all.

Hokkaido has one too, and it is an operator, not a place

「加森観光グループの4つのスキー場（ルスツリゾート、サッポロテイネ、十勝サホロリゾート、中山峠スキー場）が滑り放題の共通シーズンリフト券」 — unlimited skiing at the Kamori Kanko group's four ski areas on one common season lift pass.

Rusutsu is the one an English-speaking skier has heard of; we hold it on Epic and nothing else. Sapporo Teine, Tokachi Sahoro and Nakayama-toge we do not hold at all. Between them they are a Hokkaido season that does not involve Niseko, sold by a company rather than by a valley.

This is the shape that a search organised by prefecture will always miss, and it is why the hunt behind this article was organised by operator instead.

The one that is not a pass at all

The 信越自然郷 スーパーバリューチケット is sold by a tourism body spanning Nagano and Niigata. ¥29,000, fifteen hundred copies, and it is not a pass — it is a coupon book. What each coupon is worth depends on where you spend it:

The unit of sale is a face value in yen, not a day. No pass vocabulary describes this. "Unlimited", "five days", "two days at each" — all three would be lies about it, which is why you will not find this product on our map. It gets prose, because prose can say what it actually is.

Zao charges by when, not by where

Zao Onsen publishes a 2026/27 all-mountain common ticket table with four prices — レギュラー, ピーク, スプリング, オープン — regular, peak, spring and opening season. One product, four figures, chosen by the calendar rather than by the mountain.

Myoko has no pass, only neighbours who honour each other

There is no Myoko pass. There is a web of bilateral deals: Akakura Onsen and Akakura Kanko sell a joint all-mountain day ticket at ¥8,500; Tangram and Madarao sell theirs at ¥8,500. Each pair, separately. A skier standing in Myoko has to know which two mountains their ticket covers, and the answer is different at each lift base.

And one that is gone

Prince Snow Resorts runs ten ski areas across five prefectures — Furano, Shizukuishi, Naeba, Kagura, Hakkaisan, Manza, Karuizawa, Yakebitaiyama, Myoko Suginohara, Sayama — plus Songhua Lake in Jilin. It is the clearest case in Japan of a fleet that ought to have one ticket.

It had one. A notice dated 20 August 2025 ends it:

「長らくご愛顧いただいておりました『プレミアムシーズンチケット』は、2024-2025シーズンをもちまして、販売を終了させていただくこととなりました。今後につきましては、各スキー場にて販売されるシーズン券をご利用いただき…」 — the Premium Season Ticket was discontinued after the 2024-25 season; from now on, please use the season passes sold at each individual ski area.

So the largest operator fleet in the country is the one place you cannot buy a multi-resort pass. That is worth saying out loud, because every list of Japanese passes still repeats it.

What this adds up to

Five shapes, and the international passes teach you only the first:

• a key ticket over linked areas — Shiga Kogen's eighteen, Niseko's four (¥184,400 for the season), Zao's whole mountain
• an operator-group season pass — Kamori's four across Hokkaido
• a regional consortium season pass — NAGANO7's seven across northern Nagano
• a coupon book priced by face value — Shinetsu's ¥29,000
• bilateral honouring between neighbours — Myoko's pairs

If the trip is one valley for a season, the local product is usually the honest answer and it is rarely the one in English. If the trip is two weeks in February, the international pass may still win — but you should at least know that Shiga Kogen is one mountain, not seventeen, and that four of the seven areas on NAGANO7 are on nothing else at all.

What we do not yet hold. None of these are on the map. Nozawa Onsen, Madarao, Ryuoo, Sapporo Teine, Tokachi Sahoro and Nakayama-toge are absent from our dataset entirely, because we only carry resorts a tracked pass reaches. Attaching Shiga Kogen's key ticket means deciding whether seventeen entries become one, and attaching Niseko's means deciding whether one becomes four. Those are real decisions and this page will say so until they are made.