Explore/Japan/JP 09/Konsei Pass — Oku-Nikkō to Numata over the Kōshin Highlands
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Konsei Pass — Oku-Nikkō to Numata over the KōshinHighlands.

Distance
95 km
Duration
1 day
Climb
1,100 m
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Curated by Rider · Updated Oct 2026
Overview

Konsei Pass — Oku-Nikkō to Numata over the Kōshin Highlands.

A high alpine crossing on National Route 120 linking Nikkō and Numata. From Lake Chūzenji the road climbs past Oku-Nikkō's hot springs and bores through the Konsei Tunnel — at 1,843 m the highest national-road tunnel in Japan — before dropping through Marunuma and the Katashina valley to Fukiware Falls. Closed by snow roughly December to April.

Quick facts

SurfacePaved
Distance95 km
Days1
Total climb1,100 m
DifficultyChallenging
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Day-by-day

The route.

ROUTE
6 stops
Start
Chūzenji OnsenStart · Start on the shore of Lake Chūzenji below Nikkō. Fill up — there is no fuel at altitude. The pass is gated in winter.
Scenic
Ryūzu FallsScenic Point · Roadside cascade that fans out like a dragon's head down a lava slope beside the Yugawa River.
Scenic
Yumoto OnsenScenic Point · Sulphur hot-spring hamlet on Lake Yunoko — the last services before the climb to the pass.
Pass
Marunuma KōgenMountain Pass · Cross the Konsei Tunnel (1,843 m, Japan's highest national-road tunnel) into Gunma. Ski highland under Mt Nikkō-Shirane (2,578 m).
Scenic
Fukiware FallsScenic Point · The "Niagara of Japan": the Katashina River pours over a 30 m-wide gorge lip you can stand beside.
End
NumataEnd · End at the castle town on its river-terrace bluff. Fuel, food and Kan-Etsu Expressway access.

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