6 BULLETIN 1003, U. S. DEPARTMENT OF AGRICULTURE. 
TABLE 3.—Practical application of Table 1. 
| Trees | Aver- Stumps per acre equivalent. 
Vol- | oA : 
ume | Eo oS 
Location. Area. = inches | ameter ; 
pore and |stump}| 24 33- 35- 43- 49- 
* over. | high. | inch. | inch. | inch. | inch. | inch. 
| | 
Acres. | Bd. ft. Inches. 
WT 4EN 7; R18 28; Sec. 19 eee 7 | 35, 490 9.1 48.0 70.9 | -23.6 20.3 12, 8 8.8 
W'S SR 24H, SCC) 25. faceees 16 | 10,700 6.6 34. 5 21.4 fae Oe Del Ae nea em es 
STMOUN) R24 sec: bi ee 16 | 9,746 Dae 32. 0 19.5 O30 eso Le aleoee ese eee 
MUS Neskt 25 Wo SCCsN ase eee 16 11,000 4.0 43.5 22.0 ted) lances sae | ae ON ease 
zTADNE RIB See) Bosse ees 16 | 13,112 4.7 43.5 26.2 7 (ial eae AS s| eae 
T 10and 11S, R 25and36E _.| 17,495 | 12,200 |........ 33.0 | -24.4 eh ees Bae ns Es 
T4and 5S, R20and21 E 65593" > GaO ee eee 32. 5 13 4 APD Wl secetoss Seer re ee tere 
T3and48,R19E.........- | 3, 82071 627708) 33.5] 13.5 ag a is Rea teee Ss LE ne 
ANG Sia dl Regd Dy eee a ee Sei teed Bi!) ies 5 33. 0 16.2 5r4h Wo. ete calaseonaenl ooeaeee 
Volume equivalents: es 
Lumber (board feet)............. 500 | 1,000 | 1,500} 2,000} 2,500 | 3,000] 3,500 4,000 
Stumpwood (cord)..-.-........ Ee 20 -50- ATi | ED) 1.25 1.50 1.75 2. 00 
OREGON AND WASHINGTON. 
Oregon. Washington. 
Dotal areas 253. Sooo. bee, ak acres... 10, 000, 000 3,400,000 | 
fotalstande- ese Bic eis 1S ea eee Ree ee Ee ane board feet... 70,000,000,000 | 17,000, 000, 000 
WViolumeper acres 24 4- ae be eee do....| 7, 000 5, 000 
‘Tovalannual' cut, (OU) s:2 22323 ee eee i Scape do....| ~ 470,488,000 220, 924, 000 
Totaliares annually cleared (191/)==--— =. ee ee .-acres.. 67, 212 44,185 
Totalannual volume of stumpwood ............. SERS Eee es cords. . 235, 244 110, 462 
Western yellow pine occurs on about 14,000,000 acres in Oregon, 
practically a quarter of the State and half of its timbered land. Of 
this area about 10,000,000 acres may be classed as commercial forest. 
the estimated stand amounting to 70,000,000,000 board feet, or an 
average of 7,000 board feet an acre, interforest waste areas in- 
cluded (6). 
TABLE 4.—Representative western yellow-pine stands in-Oregon. 
Average number of trees. 
nee ——___—————— Per cent 
Location. Area. 
: 12inch | 18-inch | 24inch | fstand. 
and over. |and over. | and over. 
Acres. ; 
Near Austin-and Whitney. -.....-......- See a ret: | 258 | 25, 42 18, 97 13. 78 83.2 
Nearivookingglass Creek *=) ee ae ee 44 | 34. 57 21. 34 15, 48 | 87.3 
Near Embody: 2!) an SS ee 30; 32.00 PA He ees ERS)! 2 
(Eb 
Klamath bake Section 22 220 4322 oe eee ee 159} 25.37 | 19.85 | 15.41 
Table 4 shows average stands of Oregon yellow pine more or less 
mixed with other timber. Pure stands contain a proportionately 
greater number of trees. In cruises made by the United States 
Geological Survey, on pure, heavy stands of yellow pine near Rich- 
land, the average number of trees above 12 inches on strip acres 
ran from 30 to 43, and of those above 22 inches, from 15 to 24. 
The timber on these strips, running about 10,000 feet an acre, will 
yield approximately 5 cords of stumpwood an acre. 
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