Custer State Park hosts this day with several guided nature hikes and volunteers working on trails. The event is a three mile walk from Sylvan Lake General Store to Little Devils Tower. September 30 Annual chili cookoff sponsored by the Custer County Chamber of Commerce in conjunction with the Buffalo Roundup Arts Festival. This year's focus is on the deadly and poisonous creatures of Custer State Park. Although participants visit with ghostly critters and listen to howlish sounds, the hike is a family event geared toward educational topics.
Hikes depart every fifteen minutes, and reservations are required.