MANAGEMENT PLANS THE NATIONAL FORESTS 



41 



DESCRIPTION OF WORKING CIRCLE 



PHYSIOGRAPHIC FEATURES 



Location. — This working circle, a subdivision of the Plumas National Forest, 

 Is about 8 miles west of Quincy, the county seat of Plumas County, Calif. 



Acreage. — An area of 37,995.16 acres is embraced within the boundaries of 

 this working circle. The Government controls 28,805.25 acres, and 9,189.91 

 acres are privately owned. On the 9.189.91 acres of private land 6,389.30 acres 

 are controlled by the Spanish Peak Lumber Co. 



Topography. — The area comprising this working circle lies in a natural basin 

 formed by Spanish Creek and its various tributaries. Meadow Valley occupies 

 the center of the area and is surrounded by high ridges and summits on all 

 sides, except the east, where Spanish Creek leaves Meadow Valley and runs into 

 American Valley. The area is considerably cut up by several streams with 

 deep canyons. 



The elevation ranges from 3,700 in the valley to about 5,200 feet on the high 

 ridges. This rise in elevation takes place in a horizontal distance of less than 

 3 miles. 



With the exception of the ridge tops and serpentine areas, the soil is gen- 

 <3rally of good depth and quality and contains a plentiful supply of moisture. 



TPIE FOREST 



The forest on this area is composed of a mixed stand of the following 

 species : 



Per cent 



Sugar pine 21. 8 



Western yellow pine 26,6 



Douglas fir 28.4 



White fir 17.0 



Incense cedar 6.2 



Types. — The major portion of the area is covered by a mixture of the species 

 mentioned in the foregoing paragraph in various proportions. For the pur- 

 pose of this plan it is unnecessary to make a fine distinction as to types, based 

 on the proportion of different species present. Accordingly, only the following 

 types or conditions have been recognized. Summarized for the Government and 

 private lands they are, in acres : 





Timber 



Cut over 



Grazing 

 and farm 



Brush 



Total 



Government 



25, 787. 25 

 7, 246. 91 



1,305 

 583 



30 1,683 

 1,130 230 



28, 805. 25 



Private ...'. 



9, 189. 91 







Total 



33 033.16 i 1 888 1 1.1 fin 1.913 



37, 995. 16 







' 









The stand per acre on the timbered type and the total stand, Government 

 and private, are: 





Stand per 

 acre 



Total stand 



Government 



Board feet'^ 

 30, 745 

 22, 535 



Board feet 

 792, 827, 000 



Private . . 



163,319,000 







Total 





956,146,000 







Site classes. — Lack of growth data makes the division of the area into de- 

 tailed site classes of little use at the present time. Two site classes, conform- 

 ing to the standards for site Classes II and III, have accordingly been recog- 

 nized. There is a narrow fringe of true Class I around the valley. This, 

 however, forms such a small percentage of the total acreage that for the pur- 

 pose of this plan it has been combined with Site II. The range of tree heights 



65771—28 6 



