238 



NATURALIST'S GUIDE TO THE AMERICAS 



Colorado (15) 



Wyoming (5) 



NATURAL AREAS 



Arapaho National Forest (Colorado) 



The forest forms the headwaters of 

 the Colorado River and also North 

 Platte River, with numerous small 

 lakes at heads of streams. 



514,653 acres of lodgepole pine (Pinus 



contorta) and Engelmann spruce (Picea 

 engelmannii] ; small amount of Douglas 

 fir (Pseudotsuga tarifolia) ; two small 

 isolated areas of Western yellow pine 

 (Pinus ponder osa Scopulorum); nu- 

 merous open un-timbered land above 

 areas of aspen. There are 120,202 acres 

 timber-line, and sagebrush. 



