My National Geographic trail map for the Smokies shows a shuttle bus in the legend and on the map in a very few places: Laurel Falls trailhead, Sugarlands Visitor Center, Elkmont Campground, and Gatlinburg. Don't see any other spots.
Is this shuttle bus still in operation? Who operates it? Where can I find a schedule? Park website gives me nothing except rules and advice for people who want to bring a tour bus into the park. Is the shuttle (if it exists) only for the synchronous firefly viewing?