10 BULLETIN 1003, U. S. DEPARTMENT OF AGRICULTURE. 



Table 8. — Cruises of 478.85 acres of western yellow pine in Latah County, Idaho. 



Location. 



T 39N, 

 T 39N, 

 T39N, 

 T 40N, 

 T40N, 

 T40N, 

 T40N, 

 T42N, 

 T41N. 

 T 41N, 

 T42N, 

 T42N, 



R1W, 

 R 1W. 

 R1W, 

 R 1W. 

 R 1W, 

 R1W, 

 R2W, 

 R3W, 

 R4W, 

 R4W, 

 R4W, 

 R5W, 



Aver- 

 age 



stand 

 per 



acre. 



Bd.ft. 



sec. 2, lot 7 8,750 



sec. 9 SE NW 10, 625 



sec. 23NESW | 8,750 



sec.23NESW | 7,500 



sec. 24NENE , 10,500 



sec. 24NESE ' S, 925 



sec. 14 SE NW 11, 875 



sec. 36NENW : 17,500 



sec. 29SESE , 9,625 



sec. 31SENW I 10.000 



sec. 33SENW i 11,500 



sec. 36 SW SE ! 11,000 



Average, per forty > 10, 545 



Average diame- 

 ter. 



Breast 

 high. 



Incites. 

 29 

 34 

 34 

 28 

 26 

 26 

 26 

 29 

 34 

 32 

 30 

 29.5 



Stump 

 high.' 



Inches. 

 31.5 

 37.5 

 37.5 

 30.0 

 28.0 

 28.0 

 28.0 

 31.5 

 37.5 

 34.5 

 32.5 

 32.0 



29. 8 ' 32. 38 



Num- 

 ber 

 24-inch 

 stumps 

 per acre 

 equiva- 

 lent. 



17.50 

 21.25 

 17.50 

 13.00 

 21.00 

 17.86 

 23. 75 

 35.00 

 19.25 

 20.00 

 23.00 

 22.00 



21.09 



Num- 

 ber 

 stumps 

 per acre 

 equiva- 

 lent, 

 based 

 on aver- 

 age 

 diame- 

 ter. 



Stumpwood. 



7.60 

 6.07 

 5.00 

 7.50 

 14.00 

 11.89 

 15.83 

 15.30 

 5.50 

 6.67 

 9.20 

 9.17 



Per 



acre. 



Cords. 



. 4.18 

 5.12 

 4.19 

 3.75 

 5.25 

 4.46 

 5.93 

 8.75 

 4.81 

 5.00 

 5.57 

 5.50 



9.48 



5.21 



Per 

 area. 



Cords. 

 162. 39 

 204.80 

 167. 60 

 150.00 

 210.00 

 178.40 

 237.20 

 350. 00 

 192. 40 

 200.00 

 222. SO 

 220.00 



207. 97 



Equiv- 

 alent 

 used in 

 reduc- 

 tion. 



Bd.ft. 



1,150 



1,750 



1,750 



1,000 



750 



750 



750 



1,150 



1,750 



1,500 



1,250 



1,200 



1,229 



i From Table 6. 



Table 9. — Recapitulation of cruises. 



Location. 



Area 

 cruised. 



Total stand 



Volume 

 per acre. 



Number 

 24-inch 

 trees per 



acre 

 equiva- 

 lent. 



Stumpwood. 



Per acre. 



Per area. 



T 39N, R 1W, B M. 

 T 40N, R 1AV,B M. 

 T 40N, R 2W, B M. 

 T 42N,R 3W, B M. 

 T 41N, R 4W,B M. 

 T 42N, R 4W, B M. 



Total 



Average. 



Acres. 

 4,840 

 10, 291 

 7,380 

 4,733 

 6,147 

 4,240 



Bd.ft. 

 24, 967, 000 

 52, 218, 000 

 69, 125, 000 

 36,894,000 

 37, 525, 000 

 25, 680, 000 



Bd.ft. 

 5,158 

 5,074 

 9,366 

 7,729 

 6,098 

 6,056 



10.32 

 10.15 

 18.73 

 15.46 

 12.21 

 12.06 



Cords. 

 2. hi 

 2.53 

 4.68 

 3.86 

 3.04 

 3.02 



Cords. 

 12, 43S 

 26, 136 

 34, 538 

 18,423 

 18,686 

 12,804 



37, 671 



246, 409, 000 



123, 025 



6,580 



13.15 



1 The estimates include only yellow pine, which constituted but 53.34 per cent of the entire stand. A 

 pure stand would be heavier. 



In all tables a slight discrepancy will be noticed between the total 

 number of cords of stumpwood, when added and when computed. 

 This is due to the dropping of decimals and the using of even numbers 

 only in cruise tables. 



The average stand over large areas of yellow pine in Idaho is from 

 5,000 to 15,000 board feet an acre, or from 10 to 30 trees, 24 inches in 

 diameter on the stump, the volume of stumpwood running from 2-J- to 

 8 cords an acre. For more open stands the number of stumps will 

 be less, but such stumps are generally larger and consequently more 

 resinous. Therefore the volume of " pitch} 7 " wood will be consider- 

 able, but can be determined only by a field survey of each region. 



