Walnut Creek Campground Presents Outbreak in the Hills at 2342 Walnut Creek Road Chillicothe, Ohio 45601. Outbreak in the Hills is a fun family event. We offer two attractions every saturday night in October. Trail of Terror is a haunted walking trail that winds you through the woods with lots of scary fun. Once you go through the trail you will not want to miss shooting at live zombies. You can ride on a Zombie response wagon through the woods and shoot paint balls at live zombies before they jump on the wagon with you!