Nature Center is open from spring through fall and features live snakes, a bird-watching window, natural history displays, and a children's area. During the winter, a small Nature Nook is available instead at the Spring Mill Inn. The campground features 188 Class A campsites which include 30 amp electric service, a fire ring, and a picnic table for each site. Thirty-five primitive campsites and youth camping are also available. Four "comfort stations" are located in the campground, which includes modern plumbing, restrooms, and showers. A camp store is accessible from both inside and outside the campground. In popular culture The park was the subject of a Rescue 911 segment that aired on October 17, 1989, about a man that became trapped and was later rescued in Donaldson Cave. Gallery References Indiana Department of Natural Resource's official Web page External links Official DNR Web page for Spring Mill State Park Spring Mill State Park collection, Rare Books and Manuscripts, Indiana State Library Canyons and gorges of Indiana Civilian Conservation Corps in Indiana Grinding mills in Indiana State parks of Indiana Living museums in Indiana Mill museums in Indiana Museums in Lawrence County, Indiana Protected areas of Lawrence County, Indiana Nature centers in Indiana Bodies of water of Lawrence County, Indiana