Mukoyama Tunnel

Mukaiyama Tunnel

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A rare two-story tunnel!

Historic Sites

HighlightsRare two-story tunnel structure
Cool and refreshing interior
Mystical atmosphere
Photography possible on weekdays with light traffic
Stunning views of Yoro-Keikoku Valley

Basic Information

Address: 180-1 Katsuto, Otaki-machi, Isumi-gun, Chiba Prefecture Search for tourist attractions in Chiba

Access: Car: Approx. 25 minutes (17 km) from Ichikawa-Makurazaki IC on the Ken-o Expressway. Train: Approx. 30-minute walk from Yoro-Keikoku Station on the Kominato Railway. Show route

Op.Hours: 24 hours a day

Cld.Days: None

Fee: Free

INFO: Stopping and parking are prohibited inside the tunnel. Photography is possible during periods of low traffic.

HP: https://tabi-mag.jp/ch0342/

Overview

Mukoyama Tunnel, located in Otaki-machi, Isumi-gun, Chiba Prefecture, is a roughly 110-meter-long hand-dug tunnel. Known as a unique two-story structure, a new tunnel was dug beneath the original, creating this fascinating geological anomaly. The tunnel's interior is cool and offers a mystical atmosphere. Beyond the tunnel, the stunning scenery of Yoro-Keikoku Valley awaits. Mukoyama Tunnel was originally a simple hand-dug tunnel. However, in March 1970, road improvements were undertaken to enhance accessibility to connecting roads, resulting in a new, lower western exit. The original tunnel was not filled in, leading to this double-layered 'two-story tunnel'. While stopping inside the tunnel is prohibited, photography is possible on weekdays when traffic is light. Be sure to visit when exploring Yoro-Keikoku Valley.

Mukoyama Tunnel

Highlights

Basic Information

Overview

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