Timber Volumes 
HE total volume of 8.4 billion cubic feet cf 
solid wood (table 5) represents an average 
per acre of approximately 900 cubic feet, or 
12 standard cords. This is nearly 3 times the aver- 
age for the rest of the Lake States region. About 
44 percent of the total volume is saw timber; 56 
percent consists of cordwood and white-cedar piece 
products. 
Saw Timber 
The estimated 23% billion board feet of saw 
timber shown in table 5 is a greater volume than 
has usually been credited to the Peninsula. It 
must be borne in mind, howeve;x, that this includes 
Taste 5.—Summary of timber volumes in the Upper Peninsula, 
by products, 1935 
Equivalent in 
Walt terms of— 
; of stand- 
timber | Sotiq | All mer- 
rl chantable 
timber 
Million | Million 
board feet | cubic feet | Percent 
Saw timber (Internationalrule}4” kerf)_| 1 23, 284 3, 675 43.6 
Additional cords: ? 1,000 cords 
Birr RES ee ne oe 23, 987 ire 
‘RopS angus =e. == = 8 SS = 18, 813 A erase - 
Cullin‘sawlos trees: —.- ===... --.- 12, 400 0) | ae ene 
Ue een See ee 55, 200 4, 140 49.1 
1,000 
White-cedar products: pieces 
LOGS 2 oe een . 20, 869 DA ee 
EOHSIMU DOSS soe no ne eee aE 91, 325 1G |b aes 
Other piece products__-______ GAN eee 
Other ‘‘cedar’’ volume 2 ON scr a 
WG URS 3. 5. = Se ee) 610 1-83 
All: merchantable trees__-.--.--.-.=..-..|_--.._ ----| 18,425 100.0 
1,000 cords 
Gyillinees? See = ean ee 12, 320 924 
1 Between 1935, when the field work for the survey was done, and 1940, 
it is estimated, the saw-timber volume decreased about 2 billion board 
feet to 21,200 million board feet (see table 29, Appendix), and the total 
merchantable-tree volume decreased to about 2,000 million cubic feet. 
2 Exclusive of white-cedar. Small trees include scrub trees of large 
diameter but too short and rough for sawlogs. 
3 Other ‘‘cedar’’ volume includes small white-cedar trees containing no 
Diece prodnicts, as well as tops above piece products. 
13 
Tas ie 6.—Volume of saw timber in the west and east halves of the 
Upper Peninsula, by species, 1935 1 
Species Wes Rah Total 
Million | Million | Million 
Softwoods: board feet | board feet | board feet 
Wihiteypine sess = 2 ee ee 545 268 813 
Red pine 37 47 84 
NECKa DING siamese eae ere eee 28 27 55 
SOUUCES ce Se aed eS 693 266 959 
Balsam fir 297 272 569 
Tamarack 2 18 38 56 
Ibernlockes ase ee oe ote ae Pe 4, 832 1, 530 6, 362 
SG bell eee ee ee tee 6, 450 2, 448 8, 898 
Hardwoods: 
Sugarimaple= ee ===. See 4, 671 2, 062 6, 733 
Mellowibirchtess "2 eae eee 2, 679 1, 046 3, 725 
IB ASS wOOdee=-< 25 -= = 9) ee OE 385 66 451 
287 150 437 
Beeches sae a Bf eee ee 17 947 964 
ORKS Beene Se ee ees ee ee ee eo 58 6 64 
PA'S pe Ti ease ee = ees eee 167 384 551 
IPapenibirch. 225-s=--s-5-ee= 2-2! 91 201 292 
Soft maples 506 337 843 
250 76 326 
Motels ans oe oe ee ee: 9, 111 5, 275 14, 386 
PAU TSpecieseeeee area eee ee 15, 561 7, 723 23, 284 
1 Between 1935 and 1940 drain exceeded growth in most species and 
total sawlog volume decreased 2 billion board feet to 21,200 million. As 
of 1940, the softwood volume is about 8,000 million board feet and hard- 
wood 13,200 million board feet. (See table 29 in Appendix for estimate 
by species.) 
not only the merchantable-timber stands but also 
the volume of scattered trees on cut-over lands. 
All trees 9.0 inches d. b. h. or more are included. 
The volume is given in terms of International 
¥-inch rule, which overruns Scribner log scale in 
stands of this kind by about 14 percent, and 
corresponds closely to green lumber tally. Approxi- 
mately 21 percent of the total saw-timber volume 
is in trees less than 14 inches in diameter and in 
larger trees scattered over cordwood and restock- 
ing areas. 
The species most important from a saw-timber 
standpoint are eastern hemlock, sugar maple, 
yellow birch, and American basswood. The 
recorded volumes of these species (table 6) total 
17.3 billion board feet, of which about 15.1 billion 
