The Lower Fox Creek Schoolhouse and a lone cottonwood tree are silhouetted against a dramatic fall sunrise at the Tallgrass Prairie National Preserve. The 10,894-acre Tallgrass Prairie National Preserve is located in the Flint Hills of Kansas in Chase County near the towns of Strong City and Cottonwood Falls. Less than four percent of the original 140 million acres of tallgrass prairie remains in North America. Most of the remaining tallgrass prairie is in the Flint Hills in Kansas. Tallgrass Prairie National Preserve is the only unit of the National Park Service dedicated to the preservation of the tallgrass prairie ecosystem. The Tallgrass Prairie National Preserve is co-managed with The Nature Conservancy.