Known as one of the hardest parts of Nakasendo Road located between Sakamoto and Karuizawa. Elevation is about 1,200 meters. To differentiate current Usui Pass, Matsuida-machi Pass is put on current map.Other popular hardest parts of Nakasendo are Torii Pass(Shiojiri) and Wada Pass. Nakasendo Walk from Karuizawa is also one of the popular activities in Karuizawa.