60 BULLETIN 475, U. S. DEPARTMENT OP AGRICULTURE. 
Utah and Southern Idaho. 
Western yellow pine in Utah : (1) Burned-over areas in the natural 
yellow-pine types; (2) areas covered with brush, mainly of oak, 
maple, and service berry; (3) areas covered with open stands of 
scrubby aspen ; (4) sagebrush areas. 
Western yellow pine in southern Idaho: (1) Those sites produc- 
ing yellow pine naturally; (2) brush areas within the limits of 
yellow pine and adjoining stands of that species; (3) open grassy 
areas in the neighborhood of timber stands. 
Douglas fir: (1) Burns within the fir type; (2) sites covered with 
aspen of moderate density ; (3) burns in the Engelmann spruce type; 
(4) areas covered with brush of oak, maple, service berry, cherr}^, 
and other deciduous species; (5) open grass land and mountain 
meadows. The planting . of this species naturally centers mainly 
around the aspen type, particularly in Utah. The last two sites are 
not considered favorably for planting at present. 
Engelmann spruce: (1) Burned-over, nonrestocking Engelmann 
spruce and balsam-fir cuttings; (2) the denser and better stands of 
aspen occurring at high altitudes; (3) lodgepole-pine burns. 
Lodgepole pine: (1) Lodgepole-pine burns which are nonrestock- 
ing; (2) nonrestocking Engelmann-spruce burns; (3) aspen-covered 
areas at higher altitudes. This species is not thought suitable for 
l^lanting on brush areas nor on open grassy land where sheltering 
objects are missing. 
California. 
Planting has not yet progressed far enough to warrant a thorough 
and final classification of the sites. It has been thoroughly demon- 
strated, however, that sowing is a failure throughout the State and 
that planting can not be undertaken with any degree of success in 
the foothill region of southern California. At higher elevations in 
southern California, within the timbered belt, western yellow and 
Jeffrey pine are being grown successfully on open land free from 
rodents. The typical planting sites in this region, however, are 
covered with heavy brush frequented by rodents. So far the depre- 
dations of these animals have not been successfully controlled, and 
from present indications these depredations can not be controlled at 
a reasonable cost. 
The planting of western yellow pine in the brush fields of northern 
California gives promise of very good success, and it is thought that 
white fir and incense cedar will also do well there. Climatic condi- 
tions during the growing season are very variable in this State and 
influence the degree of success in planting to a large extent. Long 
