62 THE AMES FORESTER 



east and south. Some of the larger flats are also used as sum- 

 mer sheep range. 



The types on the summer cattle range may be divided into 

 three broad classes, grass, browse and weed types, in order 

 of importance, all being timbered types. On the northern 

 plateau area the larger percent of the area consists of an 

 almost pure stand of pine grass, and in point of area, it is 

 also probably the most important type on the Forest. The 



composition of a typical pine grass type is about as follows: 



. 



PINE GRASS 



Per Cent 



Surface supporting vegetation 90 



Average density 80 



Palatability 60 



Timber, yellow pine, Douglas fir and larch. 



GRASSES 70% WEEDS 15% BROWSE 15% 



% % % 



Pine grass 90 Alum root 25 Chaparral 25 



Koelaria 10 Arnica 20 Large huckleberry. . .20 



Bluebell 5 Spiraea 10 



Yarrow 10 Willow 15 



Everlasting 10 Kinnikinnick 30 



Clover 10 



Lupine 10 



Geranium 10 



Of the browse types the large huckleberry and small huckle- 

 berry are by far of greatest importance on the summer cattle 

 range and spring and fall sheep range, though the browse 

 types along the creeks are in the aggregate quite important, 

 and help to make up a proper balance of the different classes 

 of forage on any allotment. 



The following may be taken as typical browse types : 



LARGE HUCKLEBERRY 



Per Cent 



Surface supporting vegetation 70 



Density 90 



Palatability 60 



Timber: Lodgepole pine. 



GRASSES 5% WEEDS 5% SHRUBS 90% 



Pine grass Clover Large huckleberry 



Sedge Strawberry Willow 



Potentilla Sevenbark 



Arnica 



