The area of Holly Springs National Forest is 629.938 square kilometers.
The area of Hidden Springs State Forest is 4,856,227.70688 square meters.
The area of Buffalo Springs National Reserve is 131 square kilometers.
The area of Cold Springs National Wildlife Refuge is 12.614 square kilometers.
The area of Fish Springs National Wildlife Refuge is 72.811 square kilometers.
The area of Plumas National Forest is 4,451.542 square kilometers.
The area of Cleveland National Forest is 2,000,000.0 square meters.
The area of Modoc National Forest is 6,695.087 square kilometers.
The area of Chippewa National Forest is 6,474.97 square kilometers.
The area of Olympic National Forest is 2,564.4 square kilometers.
The area of Stanislaus National Forest is 3,634.478 square kilometers.
The area of Custer National Forest is 5,173.012 square kilometers.
The area of Umatilla National Forest is 7,284.342 square kilometers.