58 



ABSABOKA DIVISION OF YELLOWSTONE FOEEST BESEBVE. 



enter the valley. In the bottom of the valley the forest was badly burned ia 

 1882-83, and the present stands consist largely of sapling lodgepole pine, which 

 has replaced the former growth of red fir. In the extreme eastern portion of 

 the township is a burned-over area with occasional patches of very young sapling 

 growth of lodgepole pine, and irregular, thin lines of red fir and lodgepole pine, 

 which mark the remains of the former old growth. Most of the timber is inac- 

 cessible for logging operations. It is low, limby, and scrubby, but is valuable for 

 its effect in imparting stability to the slopes and their talus accumulations. 



Cuttmg. — The tie makers cutting for the Northern Pacific Railroad in 1882-83 

 culled 75 per cent of the accessible timber in Boulder Valley. 



Burns. — Fires dating from 1882-83 have run over most of the forested areas, 

 destroying the timber on 8,900 acres. 



Reproduction. — In Boulder Valley lodgepole-pine stands are slowly reforesting 

 the burned-over areas. On the southern slopes of the valle}'^ reproduction is 

 generally scanty and deficient, most, of the burns being bare of young growth. 

 The red-fir stands on the western slope are gradually gaining in density, while 

 along the subalpine areas the young growth is thin or altogether wanting. 



Undergrowth. — Moderate throughout, largely composed of Ceanothus 'oehitvrvm. 



Litter. — Abundant throughout the burned areas, and consisting of dead and 

 fallen timber partly consumed by fire or merely fire killed and thrown down by 

 wind. There are only small quantities of litter in the green stands. 



Humms. — None. 



Classification of lands in T. 5 S., R. IS E. 



Acres. 

 Forested 3,440 



Nonforested 19,600 



Badly burned '. 8, 900 



Logged .' 1,800 



Agricultural : i 300 



Grazing .-. 8,000 



Bare rocks and alpine 2, 400 



Total stand of timber in T. 6 S., R. IS E. 



Species. 



Mill timber. 



Pole and fuel 

 timber. 



Total volume of 

 all timber. 



Feet B. K. 



Lodgepole pine 



White-bark pine. . . 



Eedflr 



Subalpine flr 



Engelmann spruce . 



Total 



2, 900, 000 

 600, 000 



OiMcfeet. 



1, 000, 000 

 300, 000 



3, 000, 000 

 400, 000 

 500, 000 



Oiibic/eet. 



1, 000, 000 

 300, 000 



3, 522, 000 

 400, 000 

 608, 000 



3,500,000 



5, 200, 000 



5, 830, 000 



