National Route 122 is a national highway of Japan connecting Nikkō, Tochigi and Toshima, Tokyo in Japan, with a total length of .
Route description A section of National Route 122 in Midori in Gunma Prefecture is a musical road.
History Route 122 was originally designated on 18 May 1953 from Maebashi to Mito. This was redesignated as Route 50 on 1 April 1963 and the current Route 122 was designated the same day.
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