10 



SOUTH PLATTE VALLEY. 



Any of the species adapted to the North Platte Valley may safely 

 be recommended for the South Platte Valley. In addition, silver 

 maple may be planted in any part and black walnut in the more 

 western part of the region. Both of these trees do better near the 

 foothills at Denver and in the Greeley district than farther east. 

 Carolina poplar has been grown successfully throughout the South 

 Platte region, except in a few localities where borers attack it, and 

 black locust can be more safel}^ planted in the South Platte than in the 

 North Platte Valley. 



SPECIES FOR EXPERIMENT. 



While the list of twentj^-live trees just given includes those that 

 have given the best results in the South Platte Valley, these are not 

 necessarily the only ones which will succeed here. New species are 

 being introduced and doubtless the list may be considerably enlarged. 

 Basswood, white birch, Scotch pine, and Austrian pine have already 

 been planted with success. Some of the oaks are now being tested 

 and are making a promising showing, while after further trial 

 more of the Rocky Mountain species will probably prove well adapted 

 to forest planting in the region. 



In the North Platte Valley the planter will be more restricted in his 

 choice of species, and at present should confine himself largely to the 

 list suggested for that region. The Forest Service is inaugurating 

 experiments in forest planting at North Platte, where new species will 

 be tested, and it is hoped that in time the list can be extended. 



SPECIES BEST ADAPTED TO DIFFERENT USES. 



FUEL. 



Because of their rapid growth and large yields the following species 

 are recommended especiall}^ for fuel production : 



Cottonwood. Carolina poplar. 



Russian golden willow. White willow. 



Black willow. 

 With good care the cottonwoods and Carolina poplar will produce 

 each year 3 cords per acre and the willows will yield almost as much. 



FENCE POSTS. 



Black locust. Osage orange. 



Honey locust. Green ash. 



Russian olive. Diamond willow. 



Rocky Mountain juniper. Black walnut. 

 Hardy catalpa. 



[Cir. 109] 



