Table 11. Net volume of live sawtimber on com mercia l forest land by 

 diameter c lass groups and species, North Idaho , 1951 



Diameter cl ass group ., d_.b .h^ 



Species 



: 11.0- 



% 20.9" 



: 21.0- 

 : 30.9" 



: 31.0- : 

 : 40.9" * 



41.0" & 

 larger 



: Total 







Million board 



feet - — - 



._ 



Western white pine 



7,015 



4,182 



1,425 



759 



13,381 



Ponderosa pine 



2,082 



2,285 



2,009 



555 



6,931 



Western larch 



2,988 



1,668 



778 



119 



5,553 



Douglas-fir 



6,638 



3,785 



848 



119 



11,390 



Grand fir 



6,238 



3,667 



764 



51 



10,72.0 



Alpine fir 



983 



242 



- 



- 



1,225 



Western redcedar 



1,682 



990 



320 



106 



3,098 



Hemlock 



i/l,622 



542 



27 



- 



2,191 



Spruce 



2,194 



2,217 



307 



52 



4,770 



Lodgepole pine 



1,218 



6 







1,224 



Whitebark and limber pine 



35 



2/ 







35 



Aspen 



2/ 









w 



Cottonwood 



143 



24 







167 



Total 



32,838 



19,608 



6,478 



1,761 



60,685 



1/ Includes 78 million board feet of mountain hemlock. 

 2/ Less than 0.5 million board feet. 



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