National Park Service

Big Bend National Park in the U.S. state of Texas has national significance as the largest protected area of Chihuahuan Desert topography and ecology in the United States. It contains more than 1,200 species of plants, more than 450 species of birds, 56 species of reptiles, and 75 species of mammals. The national park covers 801,163 acres (324,219 ha), which is larger than the state of Rhode Island. Few other parks exceed this park’s value for the protection and study of geologic and paleontologic resources. A variety of Cretaceous and Cenozoic fossil organisms exist in abundance. Archaeologists have discovered artifacts estimated to be 9,000 years old, and historic buildings and landscapes offer graphic illustration of life along the international border in the 19th century. – Wikipedia