Thor, West Face Solo. Japanese Yasushi Yamanoi set up camp at the foot of the west face of Mount Thor on May 22 but could not begin his solo attempt on the route until June 20 because of bad weather. He climbed for the next eight days. After completing about half of the route in the face, he traversed to the left and reached the summit by the north ridge on June 27. A full article with photographs appears in Iwa To Yuki of December, 1988.