ocr: 360 Degrees of Wind Cave NationalPark One of the world's longest: and most complex caves and 28,295 acres of mixed-grass prairie, ponderosa pine forest, and associated wildlife are the main features of the park: The cave is well known for its outstanding display of boxwork, an unusual cave formation composed of thin.calcite finsresembling honeycombs. The park's mixed-grass prairie is one of the few remaining and is home to native wildlife such as bison, elk, pronghorn; mule deer, coyotes, and prairie dogs. Explore the Virtual Landscape Click on anya dot on the map to begin your toura NorthernS ...