Historical Marker
Battle Mountain
Historical marker location:
Ukiah, Oregon
( Memorial is on Pendleton - John Day Highway (U.S. 395), on the left when traveling north.)
Oregon History.
The largest living organism in the world is a fungus in Oregon. The Armillaria ostoyae fungus covers over 2,200 acres of forest in eastern Oregon and is estimated to be over 2,400 years old. It is also known as the "Humongous Fungus."