Quehanna Wild Area is a wildlife area within parts of Cameron, Clearfield and Elk counties in the U.S. state of Pennsylvania; with a total area of 48186acre, it covers parts of Elk and Moshannon State Forests. Founded in the 1950s as a nuclear research center, Quehanna has a legacy of radioactive and toxic waste contamination, while also being the largest state forest wild area in Pennsylvania, with herds of native elk. The wild area is bisected by the Quehanna Highway and is home to second growth forest with mixed hardwoods and evergreens. Quehanna has two state forest natural areas: the 1215acre Wykoff Run Natural Area, and the 917acre Marion Brooks Natural Area. The latter has the largest stand of white birch in Pennsylvania and the eastern United States.The land that became Quehanna Wild Area was home to Native Americans, including the Susquehannock and Iroquois, before it was purchased by the United States in 1784. Settlers soon moved into the region and, in the 19th and early 20th centuries, the logging industry cut the virgin forests; clearcutting and forest fires transformed the once verdant land into the "Pennsylvania Desert". Pennsylvania bought this land for its state forests, and in the 1930s the Civilian Conservation Corps worked to improve them. In 1955 the Curtiss-Wright Corporation bought of state forest to focus on developing nuclear-powered jet engines. They named their facility Quehanna for the nearby West Branch Susquehanna River, itself named for the Susquehannocks.