The area of Helena National Forest is 3,949.732 square kilometers.
Helena National Forest was created in 1907.
There is a Glacier National Park which extends to the border of Canada.And a Helena National Forest which surrounds Helena.Regrettably, due to climate change, the glaciers have all but melted away.
The area of St Helena Island National Park is 750,000.0 square meters.
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.
The area of Sawtooth National Forest is 8,498.398 square kilometers.