480 



AMERICAN FORESTRY 



CORD WOOD CUTTING IN WHITE BIRCH FOREST NEAR FAIRBANKS. 



THE BACKGROUND. 



CLUMP OF UNCUT ASPEN IN 



are extensions of the interior Canadian 

 forests, containing much the same spe- 

 cies. In the Susitna and Copper river 

 basins there is a sort of intermediate 

 type between coast and interior, because 

 these rivers have their rise well inland 

 and break through the mountain bar- 

 rier to the coast. The Yukon, of course, 



flowing through tundra for its last hun- 

 dred miles or so, has no valley forests 

 near its mouth. 



All in all, not much more than one- 

 fourth of the total land area bears 

 woodland or forest of any sort, and not 

 more than one-twentieth has sizable 

 saw timber, the rest of the wooded area 



UPPER LIMIT OF FOREST ON NORTH SLOPE AT THE HEAD OF CLEARY CREEK. SMALL BLACK SPRUCE 

 WITH A MAXIMUM HEIGHT OF 20 FEET. ELEVATION 2,300 FEET. 



