THE UPPER PART OP NENANA CANYON, SHOWING ROUTE OF -RAILROAD 



"The coal of the Nenana fields, on the northern part of the railroad, is a high-grade 

 lignite, which is expected to furnish cheap and excellent fuel for domestic and industrial 

 purposes" (see text, page 589). 



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Jmf? 



Photos from U. S. Department of the Interior 

 DIFFICULT SURVEYING IN NENANA CANYON 



579 



