 The Adirondack Park, roughly the size of the state of Vermont and the largest state park in the United States, was established in 1892 and given state constitutional protection in 1894.The thinking that led to the creation of the park first appeared in George Perkins Marsh's "Man and Nature", published in 1864.Marsh argued that deforestation could lead to desertification; referring to the clearing of once-lush lands surrounding the Mediterranean, he asserted "the operation of causes set in action by man has brought the face of the earth to a desolation almost as complete as that of the moon."