It explains particulars about snow on the route as Tamaki and others encountered heavy snow and could not know even which was the right course since 40 centimeters of snow lay at one of the passes and there also lay the thick snow at the other side of the pass (Wakayama Prefecture), therefore they could not make sufficient investigation (refer to 28 of 'Tamaki 1979').
特に、玉置らは猛吹雪に見舞われ、峠での40センチメートルの積雪や和歌山県側の積雪で道が不明確であったことなどに阻まれて、充分な調査ができなかったと述べている[玉置1979:28]。