The area of Umatilla National Forest is 7,284.342 square kilometers.
The area of Umatilla National Wildlife Refuge is 96.246 square kilometers.
Gifford Pinchot National Forest Mount Baker-Snoqualmie National Forest Idaho Panhandle National Forest Okanogan National Forest Umatilla National Forest Wenatchee National Forest info from: http://gorp.away.com/gorp/resource/us_national_forest/wa.htm
Umatilla National Wildlife Refuge was created in 1969.
The area of North Fork Umatilla Wilderness is 81.52 square kilometers.
The area of Prescott National Forest is 5,058.571 square kilometers.
The area of Ochoco National Forest is 3,439.828 square kilometers.
The area of Talladega National Forest is 1,588.662 square kilometers.
The area of Umpqua National Forest is 3,990.119 square kilometers.
The area of Conecuh National Forest is 339.373 square kilometers.
The area of Superior National Forest is 15,782.74 square kilometers.
The area of Kisatchie National Forest is 2,444.301 square kilometers.
The area of Boise National Forest is 10,570.389 square kilometers.