78 



THE OUTLOOK FOR TIMBER IN THE UNITED STATES 



Table 66. — Inventory volumes per acre in the Rocky Mountains, by owner class, 1952, 1962, and 1970, 



with projections to 2020 





GROWING STOCK- 



-CUBIC FEET 











Owner class 





1952 



1962 



1970 



Projections 





1980 



1990 



2000 



2020 



National Forest. . _ _ 



1,426 

 1,432 

 2, 123 

 1, 128 



1, 522 

 1,476 

 2,260 

 1,209 



1,732 

 1,520 

 2,367 

 1,275 



1,520 

 1,679 

 2,082 

 1,511 



1,545 

 1, 799 

 1,889 

 1,687 



1,584 

 1,853 

 1, 816 

 1,767 



1 702 



Other public .. - -- _ . __ 



1 853 



Forest industry _ . ___ __ 



1 816 



Farm and miscellaneous private.. __ 



1 767 









All owners.. 



1,393 



1,482 



1,630 



1,558 



1,614 



1,658 



1, 735 







SAWTIMBER— BOARD FEET 



National Forest 



Other public 



Forest industry 



Farm and miscellaneous private 



All owners 



6,046 



6,350 



10, 564 



4,402 



6,243 



6, 187 



10, 663 



4,486 



6,912 



6, 107 



10, 673 



4,553 



5,846 

 6, 256 

 8,807 

 5,220 



5,780 

 6,653 

 7,677 

 5,741 



5,816 

 6,843 

 7,284 

 5,989 



5,917 



6,051 



6,440 



5,881 



5,947 



6,026 



6, 135 

 6,843 

 7,284 

 5,989 



6,242 



Table 67. — Area of commercial timberland on the Pacific Coast, by owner class, 1952, 1962, and 1970, 



with projections to 2020 



[Million acres] 



Owner class 



1952 



1962 



1970 



Projections 





1980 



1990 



2000 



2020 



National Forest . _. . _ . 



30.5 

 10.4 

 11. 2 

 16.7 



31.3 



9.2 



11.9 



16. 1 



30.9 



9.0 



12. 2 



15.4 



30.7 



8.8 



12.0 



14.9 



30.4 



8.7 



11.9 



14.6 



30. 1 



8.6 



11.7 



14.3 



29. 5 



Other public . 



8.5 



Forest industry _ . 



11. 4 



Farm and miscellaneous private ... 



14. 1 







Total ... . . 



68.8 



68.5 



1 67. 6 



66.5 



65.5 



64. 7 



63.4 







Includes 1.1 million acres in Hawaii not considered in projecting timber supplies. 



Considerable acreages of commercial timber- 

 land also have been converted to farm and pasture 

 land in the Douglas-fir region, for example, and in 

 the coastal area of California. Although the rate of 

 land clearing for agricultural use appears to have 

 diminished, many owners have preferred more 

 immediate income-producing pursuits such as the 

 grazing of sheep and cattle to uncertain and de- 

 ferred returns from timber growing. 



Road construction also has accounted for 

 significant losses of commercial timberland on the 

 Pacific Coast. The public highway system has 

 been greatly extended and many existing highways 

 have been widened. Also a major portion of public 

 and private timberlands have been roaded with 

 timber access roads, with consequent reduction 

 of the commercial timberland base. Many electric 



and gas transmission lines also pass through 

 commercial timberland, and numerous reservoirs 

 have been constructed in forested areas of the 

 Douglas-fir region and in California. 



Considerable shifts in commercial timberland 

 acreage also have occurred within the four owner- 

 ship groups considered. In eastern Oregon, a 

 substantial increase in commercial timberland in 

 National Forests was due to the 1960 transfer of 

 almost one-half million acres from the Klamath 

 Indian Reservation to the Winema National 

 Forest. Commercial timberland in other public 

 ownerships also decreased between 1952 and 1970 

 as a result of the return of tax deeded land in 

 California to private ownerships, and sale of 

 certain public domain and Indian trust lands. 



Forest industry increased its ownership of 



