They passed the base of the peak nearly to the head of the west branch of the Beich Firn ( tributary of the Oberaletsch Glacier ) .
They had on their left a steep iceslope , broken in five places by protruding masses of rock .
Passing the base of the peak nearly to the head of the west branch of the Beich Firn ( tributary of the Oberaletsch Glacier ) , they had on their left a steep iceslope , broken in five places by protruding masses of rock .