President Theodore Roosevelt in 1903 created Wind Cave National Park. It was the seventh national park and the first cave worldwide designated as a national park. While the park is known as the home of one of the longest caves globally, measuring more than 149 miles, it is home to the largest remaining natural mixed-grass prairie in the country. The park, which covers 33,847 acres, is home to an array of animals, including bison and prairie dogs. Access to the caves has been closed since 2019 because of a broken elevator.