We've stayed there many times as we're only about 3 hours away. Wildnerness Campground is owned by Silver $$ City and they do provide shuttle service. We were last there in May and since they have redone the parking and roads leading in and out to SDC it appears they are moving toward paid parking unless you want to park in the boondocks. We've used the shuttle (especially during Thanksgiving/Christmas) because the parking can be a real headache.