On a visit to the Pinnacles cabin on the East Entrance Road, during the stormy months of early spring of 1933, I found it inhabited by woodrats, their usual work being in evidence by a large nest in a corner of the building. A rat's choice of material was used.

However, this particular rat, the builder of the nest, was more select in his material chosen and the manner in which it was placed. This was shown by the method nails had been sorted by size. Each size was in a little pile of its own. Straight and bent nails were also separated.

The rat was apparently expectant of a ranger's visit, as knives, forks and spoons were piled together in the center of the floor where under subdued light of mid-winter, they could be easily found. Since we must have rats, some of us would appreciate this higher intellectual type as they do facilitate labors in gathering cooking utensils together upon visiting a patrol cabin.