The area of Flathead National Forest is 2,000,000.0 square meters.
Flathead National Forest was created in 1899.
West - the North Fork of the Flathead River. South - the Middle Fork of the Flathead River, Great Bear Wilderness, Flathead National Forest, and Lewis and Clark National Forest. East - the Blackfeet Indian Reservation. North - Waterton Int'l Peace Park and Alberta & British Columbia, Canada
The area of Gallatin National Forest is 8,498.398 square kilometers.
The area of Sawtooth National Forest is 8,498.398 square kilometers.
The area of Olympic National Forest is 2,564.4 square kilometers.
The area of Malheur National Forest is 6,879.656 square kilometers.
The area of Croatan National Forest is 647.036 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.
The area of Stanislaus National Forest is 3,634.478 square kilometers.