National Route 291 is a national highway of Japan connecting Maebashi, Gunma and Kashiwazaki, Niigata in Japan, with a total length of 161.6 km (100.41 mi).
The route consists of the Nakayama Tunnel, a vehicular tunnel, replacing the former Nakayama Tunnel.
Route description
A section of National Route 291 in the town of Minakami in Gunma Prefecture is a musical road.
A section of the road leading to Ichinokurasawa cliff in Minakami is closed for vehicles during the Summer. A separate section of the road alongside the Nobori River in Minamiuonuma is closed during the Winter.
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