EXD Vimv OF THE DEVILS POST PILE: A WONDERFUL CLIFF OF COLUMNAR BASALT 
It is on this side that the greatest free lengths can be observed. Each winter's frosts 
throw down portions of the outer columns, and, from the size of the pile of fragments at 
the base, this process must have been going on for centuries. How far the formation extends 
below the pile of fragments is unknown, but it probabl}' extends a considerable distance. A 
measurement by the writer (W. L. Huber) showed a maximum vertical length of 50 feet 
standing free above the pile of fragments. On the top of the pile the ends of a number of 
the posts are exposed and show unmistakable evidence of glaciation. Most of the post pile 
and much of the surrounding country are covered with a layer of pumice. This is apparently 
the product of a volcanic eruption which occurred after the glaciers had receded. Photo and 
note by W. L. Huber. 
569 
