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M29 N.§. Forest Sexucées. det. of AGRICULTURE 
i* RESEARCE. NOT 
CENTRAL STATES FOREST EXRERIMENTRSTATION 
COLUMBUS, OHIO R. D. LANE, DIRECTOR 
3 
“7 CS=2Z1 September 1964 
FOREST AREA IN ILLINOIS, BY COUNTIES, 1962 
Forest land in Illinois has decreased about 125,000 acres 
or 3 percent since the previous Forest Survey in 1948. [In 
= 1962 forests occupied 3,871,300 acres--ll percent of the 
State's total land area (table 1). Nearly all of the decline 
in forest land was in the lightly forested northern half of 
. the State where 248,000 acres were converted to agriculture 
and other nonforest uses. The largest area reductions were 
in Pike and Adams Counties. 
The more heavily forested 
southern half of the State 
showed an increase of about 
123,000 acres--36,800 acres 
or 3 percent more forest in 
the Claypan Unit and 86,600 
acres or 8 percent more in 
the Southern Unit (fig. 1). 
The largest increases were 
found in Pope and William- 
son Counties. Nearly two- 
thirds of the State's forest 
land is in these two units 
with the greatest concentra- 
tion in the southernmost 
counties. 
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Commercial forest 
(percent) 
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ES 10-29 
30+ 
Nearly all of the forest 
land in Illinois can produce 
commercial timber. In 1962 
commercial forest land total- 
ed 3,761,400 acres--179,600 
acres less than in 1948. [In 
FIGURE 1.--Commercial forest land area, Illinois, 1962. 
