The area of Willamette National Forest is 6,780.132 square kilometers.
Willamette National Forest was created in 1933.
Willamette National Cemetery was created in 1949.
The area of Willamette Park is 107,201.226629376 square meters.
Roy Charles Brady has written: 'Recreation on the Mt. Jefferson Primitive area which lies within the boundaries of the Willamette National Forest' -- subject(s): Recreational use
The area of Sawtooth National Forest is 8,498.398 square kilometers.
The area of Gallatin National Forest is 8,498.398 square kilometers.
The area of Croatan National Forest is 647.036 square kilometers.
The area of Malheur National Forest is 6,879.656 square kilometers.
The area of Umatilla National Forest is 7,284.342 square kilometers.
The area of Custer National Forest is 5,173.012 square kilometers.
The area of Inyo National Forest is 24,281.1385344 square meters.
The area of Siuslaw National Forest is 2,549.52 square kilometers.