48 



ABSAEOKA DIVISION OP YELLOWSTONE FOREST BESEEVB. 



stands of spruce and red fir. In the subalpine stands young gro>vth is moderately 

 abundant, and is sufficient to maintain the present density of the forest. It is chiefly 

 composed of Engelmann spruce. 



Undergrowth.^-Dense willow and alder brush are abundant in the canyon bot- 

 toms and on the lower slopes. In the subalpine stands there is little Underbrush. 



Litter. — Throughout the burns and in the sapling stands there is a great deal of 

 litter consisting of dead and fallen fire-killed timber in various stages of decay. 



Humus. — The humus on northern slopes consists of a thin moss cover, and 

 elsewhere of light layers of pine needles. 



Classification of lands in T. 4 S., R. IS E. 



Acres. 



Forested , 14,440 



Nonforested 8, 600 



Badly burned 5,700 



Logged :.. 1,500 



Agricultural 500 



Grazing None". 



Bare rocks.. '. --... 2,000 



Lakelets, tarns, and streams 400 



Total stand of timber in T. 4 S., R. IS E. 



Lodgepole pine.... 

 White-bark pine... 



Ked fir 



Subalpine fir 



Engelmann spruce . 



Total. 



Mill timber. 



Feet B. M. 

 10, 000, 000 



8,000,000 



6, 000, 000 



24, 00b, 000 



Pole and fuel 

 timber. 



Oaiic/eef. 

 16, 000, 000 

 2, 000, 000 

 5, 000, 000 

 4, 000, 000 

 2, 000, 000 



29, 000, 000 



Total volume of 

 all timber. 



Ouhicfeet. 



17, 800, 000 

 2, 000, 000 

 6, 440, 000 

 4, 000, 000 

 3,080,000 



33, 320, 000 



Composition of forest in T. 4 8., R. IS E., including trees of all species vrith basal diameters of 3 inches and 



upward. 



Per cent. 

 Lodgepole pine 60 



White-bark pine : : 4 



Red fir 10 



Subalpine flr 10 



Engelmann spruce 16 



Township 4 South, Range 14 East. 



Topogra^phy. — The western and central areas of the township comprise steep, 

 rough mountains rising to elevations of 10,000 feet. In the eastern areas the slopes 

 gradually spread out and form long and comparatively low ridges and spurs. 



Minmg.: — None. 



