(lumber tally), and the annual capacity of the 

 mills active in 1937 was 2.3 billion board feet. 

 The lumber production in 1937 (table 29) was 1.8 

 billion board feet, or approximately three-fourths 

 of the total installed capacity. Many of the large 

 mills operate two shifts daily even during periods 

 of low regional production and the mills of the 

 region can actually exceed by a large measure 

 the installed capacity rating computed on the 

 basis of one daily 8-hour shift. In spite of this 

 apparent maladjustment of installed capacity to 

 production, several new mills have recently been 

 constructed and others proposed for early con- 

 struction. Of course, some of the older mills are 

 nearing the end of their operating life owing to 

 exhaustion of available raw material. In the 

 Klamath Plateau unit installed capacity does not 

 so greatly exceed lumber production as in most of 

 the other units. As a general rule the large mills 

 maintain production more evenly and at a higher 

 comparative rate than do the small mills. The 

 excess of installed sawmill capacity over normal 

 production is much less in this region than in some 

 other forest regions — the Douglas-fir, for example — 

 indicative of the more stable conditions. 



Table 28. — Number and daily installed capacity 1 of sawmills 

 in forest-survey units of ponderosa pine region, 1937 



Forest-survey unit and 

 capacity group 



Active 

 mills 



Idle 

 mills 



Total 

 mills 



Active 

 mills 



Idle 

 mills 



All 

 mills 



Eastern Washington: 



Chelan-Colville 



Yakima River ...... 



North Blue Moun- 

 tain 



Num- 

 ber 

 54 

 34 



7 



Num- 

 ber 

 6 

 3 



Num- 

 ber 

 60 

 37 



7 



M 

 board 



feet 



1.319 



882 



120 



M 



board 



feet 



114 



65 



M 



board 

 feet 

 1,433 

 947 



120 







Total 



95 



9 



104 



2,321 



179 



2,500 



Eastern Oregon: 



North Blue Moun- 

 tain _. .. ... 



20 

 27 



31 

 30 



5 

 4 



7 

 2 



25 

 31 



38 

 32 



823 

 1,203 



962 

 2,292 



55 

 47 



65 

 111) 



878 



Deschutes River. _ ... 

 South Blue Moun- 

 tain ... __j 



1,250 

 1 027 



Klamath Plateau. . 



2,402 



Total 



108 



18 



126 



5.280 



277 



5 557 







Daily capacity (M hoard 

 feet): 

 1-20 



114 

 46 

 29 

 11 

 3 



21 



. 4 



2 



135 

 50 

 31 

 11 

 3 



973 

 1,549 

 2,204 

 1,915 



960 



151 

 150 

 155 



1 124 



21-50 



1 699 



51-100 



2 359 



101-200 .. 



1,915 

 960 



201-500 







Regional total.. . .. 



203 



27 



230 



7, 601 



456 



8,057 



1 Per 8-hour shift. 



Table 29. — Annual lumber production in the ponderosa pine region, by survey unit and species, 1925—38 1 

 [In million board feet— i. e., 000,000 omitted] 



Forest-survey unit 

 and species 



1925 



1926 



1927 



1928 



1929 



1930 



1931 



1932 



1933 



1934 



1935 



1936 



1937 



1938 1939 



Chelan-Colville 



Yakima River. 



North Blue Mountain. 



Deschutes River 



SouthBlue Mountain, 

 Klamath Plateau 



135 

 155 

 199 

 363 

 94 

 397 



124 

 173 

 181 

 320 

 97 

 448 



116 

 145 

 116 

 270 

 70 

 3S9 



113 

 166 



82 

 306 



73 

 506 



142 

 196 

 145 

 334 



88 

 537 



119 

 156 

 97 

 242 

 138 

 466 



115 

 132 

 59 

 159 

 117 

 377 



85 

 101 

 31 

 92 

 83 

 220 



115 

 110 

 53 

 147 

 105 

 355 



107 

 104 



44 

 162 



96 

 373 



128 

 143 

 94 

 237 

 171 

 524 



137 

 166 

 117 

 281 

 208 

 690 



171 

 174 

 134 

 301 

 234 

 759 



139 

 137 

 105 

 281 

 182 

 602 



189 

 162 

 137 

 379 

 230 

 772 



Region total 



1,343 



1,343 



1, 106 



1.246 



1,442 



1,218 



959 



612 



8=5 



886 



1.297 



1,599 



1,773 



1,446 



1,869 



Ponderosa pine 



1,204 

 105 

 1 

 20 

 1 

 3 

 8 

 1 



1, 205 



107 



1 



20 



2 



6 



1 



1 



( 2 ) 



1,016 



69 

 ( 2 ) 

 13 

 1 

 6 

 ( 2 ) 

 1 



1,129 

 89 

 6 

 11 

 1 

 7 

 2 

 1 



1,300 



95 



3 



18 



23 

 2 



1 

 ( 2 > 



1.118 



81 



1 



12 



1 



4 



( 2 ) 



1 



892 

 55 

 1 

 1 

 6 

 2 

 ( 2 ) 

 2 



582 



26 



1 



1 



( 2 ) 



1 

 ( 2 ) 

 1 



824 

 50 

 o 

 3 

 ( 2 ) 

 4 

 1 

 1 



.818 

 50 

 6 

 4 

 4 

 1 

 1 

 2 



1,192 

 77 

 15 

 5 

 ( 2 ) 

 5 

 2 

 1 



1,444 

 109 

 30 

 10 

 1 

 3 

 1 

 1 



1.619 

 116 

 16 

 7 

 2 

 8 

 1 

 4 



1,324 

 78 

 29 

 5 

 3 

 3 

 1 

 3 



1.728 

 100 



Sugar pine 



Western larch 



Western white pine. . . 

 White firs 3 



Western hemlock . . . 



19 

 6 

 4 

 7 

 1 

 4 



































Total 



1,343 



1.343 



1, 106 



1,246 



1,442 



1.218 



959 



612 



885 



886 



1,297 



1,599 



1,773 



1,446 



1,869 







i Compiled from original data obtained by Forest Service under cooperative agreement with the Bureau of Census. 

 > Less than 500 M board feet. ' Includes Pacific white fir and grand fir. 



64 



