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MISC. PUBLICATIÜX 16 



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DEPT. OF AGKICULTURE 



even higher valué to the Nation tlian tlie procluction of wood 

 (figs. 10). 



The species most utilized are the valuable western white pine of 

 the northern Roekies and the ponderosa pine which is seattered 

 tlirougliout the whole Rocky Mountain región. 



Bocky Mountain forests are made up mostly of coniíerous species. 

 Among these. in addition to the two just mentioned. are Douglas 

 fir; western larch: western red cedar: western and mountain hem- 

 loek; lodgepole, liruber, whitebark. bristleeone. and piñón pines: al- 

 pine. white. and lowland white firs: Engelmann. bine, and white 

 spruees; junipers: cedars; and cypresses. Aspens. cottonwoods. oaks. 

 walnut. sveamore. alder. and boxelder are some of the few hardwoods 

 of this región. 



Figure 10. — A forest-covered watershed of the Rocky Mountain regiou. 

 The forests of this región piar au important part in watershed protection. 



Pacific Coasf Foresf Región 



The Pacific coasr forest región extends from the Canadian border 

 through the western half of Washington and Oregon and into Cali- 

 fornia. In the southern portion of California the timbered lands 

 are surrounded by narrow margins of low broadleaf-tree forest or 

 chaparral. 



What are perhaps the heaviest stands of timber in the world are 

 to be found in the Pacific Coast States. Thev contain the last great 

 commereial bodies of softwood timber remaining in the United 

 States, the greatest bodies of virgin forest yet uncut. Each year 

 sees more western lumber on eastern markets. The figures for 1938 

 show that the three Pacific Coast States, together with Nevada, pro- 

 duced 40 percent of the lumber cut in this countrv. as against 13 



