Yamanouchi, Nagano Prefecture, Japan

志賀高原 高天ヶ原マンモススキー場, Shiga Kogen Takamagahara Mammoth Ski Area, 高天ヶ原マンモススキー場

Ski area

• 3 km of mapped runs
• 3 mapped lifts
• Elevation 1671–1903 m (232 m vertical)
• Activities: downhill

Approximate resort centre, not a trail boundary. Confirm current conditions and access with the operator. An official trail-map link has not been verified for this listing.

Source: OpenSkiMap / OpenStreetMap contributors (ODbL), October 2026 — mapped figures; confirm with operator.