Plant Industries and Climatic Plant Formations 363 



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f/. 5. Forest Service 



Fig. 229, Western yellow pine plantation, ii years old ; Lolo National Forest, Montana. 



pulp woods, finishing woods, excelsior, and tannin, are rapidly 

 taking a leading place, even in the Eastern markets. At the same 

 time more and more of the wood-consuming industries are be- 

 coming established in the West coast states. 



The numerous mines scattered throughout this region have 

 consumed large quantities of wood for fuel and for mine props. 

 The railroads, traversing great stretches of plains and desert as 

 well as forest lands, have required a vast amount of timber for 

 poles and crossties. 



The Douglas fir, found in such abundance in Oregon and Wash- 

 ington, has proved to be adapted to a great variety of uses. The 

 Western yellow pine, the lodgepole pine, and the sugar pine have 

 come into the market for rough timber, fuel, and construction. 



