Marunuma Kogen
Also known as: Marunuma Kogen Resort
Mt Nikko-Shirane; Oze region
Can the whole group come?
Who in your group gets a good week at Marunuma Kogen - the terrain split, the ski school, and what the people not skiing do.
official ~Beg 20 / Int 50 / Adv 30 (sources vary)
Base learner area; popular beginner-intermediate hot-lapping on pristine groomers
Nikko-Shirane ropeway/sightseeing; onsen nearby (Katashina/Oze)
- (not documented)
Ski school on-site; rental (English est)
Solid mixed-ability; cruisy groomers + real advanced pitches
Snow & season
Excellent - high altitude + heavy snowfall = longest season in Gunma
Typically late Nov to early May (long high-altitude season); no night skiing
Dec-Mar peak; strong early + late
Peak late Dec-Feb; long quiet early/late season
Long groomers + tree runs
Cold, whiteout at altitude
The mountain
~9.8 km slope length
~22 courses; ~9.8 km slope length
Tree runs available
Busy weekends
Getting there & lift pass
Adult day ~JPY 5,500
Permits and operators change - confirm before booking.
Joetsu Shinkansen to Jomo-Kogen + Marunuma shuttle; ~50 min from Numata IC
Shuttle from Jomo-Kogen
Base + on-mountain restaurants
On-site hotel; ski-in/out
Katashina / Numata hub
Patrol & safety
Patrol (est)
Terrain split varies by source
Numata city (Tone Chuo Hospital, est)
This profile is desk research, compiled from public sources - not a first-hand ski resort report. Coordinates are approximate.