Kiso Road; Kiso Valley section of the Nakasendo
Refers specifically to the portion of the old Nakasendo highway that runs through the Kiso Valley, known for its post towns and scenic beauty.
See also: 中山道 (なかせんどう)
The Kiso Road is part of the Nakasendo, and many post towns remain along it.
The entire Nakasendo highway connecting Edo and Kyoto; 木曽路 is the section passing through the Kiso Valley.
Standard modern spelling.
Historical variant using 曾 instead of 曽; encountered in older texts.
From 木曽 (Kiso, the region) + 路 (road, route).