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Health and Science > Environment and Nature > Nature

National Forest System, 1900–2004

Year Number of forests Area (million acres)
1900 38 46.52
1905 83 75.35
1910 149 168.03
1915 162 162.77
1920 152 156.03
1925 159 158.40
1930 149 160.09
1935 142 163.31
1940 160 174.77
1945 155 177.64
1950 151 179.69
1955 149 180.30
1960 151 180.84
1965 154 182.14
1970 154 182.57
1975 155 183.28
1980 155 183.06
1985 156 186.32
1992 156 187.11
1993 155 187.23
1994 155 187.27
1995 155 187.24
1996 155 187.28
1997 155 187.42
1998 155 187.49
1999 155 187.67
2000 155 187.74
2001 155 187.75
2002 155 187.81
2003 155 187.86
2004 155 188.19
Source: U.S. Dept. of Agriculture, Forest Service. Land Areas of the National Forest System. Web: www.fs.fed.us .

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