12 



BULLETIN 4, U. S. DEPARTMENT OF AGRICULTURE. 



On Sturgill Range, at an altitude of about 7,600 feet and in the 

 same general type as the Stanley Range, 5 acres were seeded. The 

 area selected is an old bed ground lying in a shallow cove. The 

 ground is smooth, except for occasional narrow ruts caused by erosion 

 in the spring. The general aspect is toward the southwest, with a 

 gradient of 5° to 6°. The area formerly bore a heavy growth of 

 mountain bunch grass {Festuea viridula), but is now bare of vege- 

 tation save for a few scattered tufts of yarrow or wild tansy, sedge, 

 and needle grass (Stipa minor) and a small clump of alpine fir and 



32rocCs 



Legend 

 A Coniferous frees 

 / Loys 



Fig. 3. — Chart of the seeding experiment on the Sturgill Range. 



whitebark pine in plot 1. (See fig. 3.) Small portions of plot 1 

 and plot 5 are covered by logs. The soil is a deep basaltic clay loam 

 similar to that on Stanley Range, but richer in organic matter. 

 Soil samples taken at a depth of 8 inches at various times during the 

 main growing season gave an average moisture content of 27 per 

 cent. Although sheep have been bedded on the ground for several 

 years, the soil has not been packed to a great extent. 



Plot 1 contained 1 acre. It was divided into three subplots, each 

 of one-third acre. Subplot 1 was seeded to timothy at the rate of 9 

 pounds per acre; subplot 2, to redtop at the rate of 15 pounds per 



