342 University of California Publications in Zoology [Vol. 12 



as natural and unsullied a collecting ground as one would wish to 

 find. The variety of mammal life confirmed this idea thoroughly, 

 for the locality yielded the greatest number of species of any of our 

 camping places, with the exception of Helena. Birds were not numer- 

 ous as to individuals except for chickadees and juncos. 



Judging from the mammalian fauna and the trees the region 

 is in the Canadian division of the Boreal zone. Among the mam- 

 mals taken were : golden-mantled ground squirrel, flying squirrel, 

 mountain beaver, bushy-tailed wood rat, red-backed mouse, mink 

 and marten. 



Wildcat Peak was visited as a side trip of three days, June 

 27 to 30. This is considered the highest point near the Lake, 

 having an elevation of 7200 feet. We accomplished almost nothing 

 in the collecting line while there, both because of the apparent 

 scarcity of small mammals and birds and on account of a severe 

 storm of rain and sleet. Our camp was about 300 feet below 

 the summit, at the upper limit of the red fir growth. There were 

 a few scattering firs above, and some white-barked pines; but the 

 top of the ridge is very narrow and rocky, falling off abruptly 

 to the north. Prom the summit one obtains a comprehensive view 

 of the Scott and Salmon mountains to the south and west, and of 

 Mount Shasta to the east. There was almost no lift at this altitude ; 

 but the fact was due probably not so niuch to the height as to 

 the barren, rocky nature of the ground. But five species of small 

 mammals were taken, one an Aplodontia secured in a meadow below 

 the peak on the north side. Birds were as scarce as mammals. The 

 trees indicate that the peak rises barely into the Hudsonian zone. 



Our next move, July 1, was to the North Fork of Coffee Creek, 

 almost due south across Saloon Creek divide, 6850 feet, in Trinity 

 County. 



North Fork op Coffee Creek is a good-sized stream making 

 its way precipitately down a narrow, well-wooded canon. There 

 are numerous small meadows where creeks make into the main 

 stream, the banks of which are densely clothed with alders. The 

 timber is mainly white fir, Douglas fir, yellow, sugar, and silver 

 pine, cedar, and a few cottonwoods. This growth does not extend 

 far above the creels bed on the north side, but gives way to a dense 

 growth of deer oak and white-flowered ceanothus which was in full 

 bloom. Our camp was at the junction of the North Fork of Coffee 

 Creek with Granite Creek, at an elevation of 4500 feet, with only 



