We got to Denali the day the park closed. We we're not planning on staying in the park but we enjoyed it so much that we decided to. By the time we drove out of the park, they had closed all of the campgrounds for the season except for Riley Creek Campground. When the park closes the campground served on a first come first serve basis and had no fees. We had a great spot next to the showers and bathrooms but they had been locked down for the season. There was still running water at an outdoor sink and a pit toilet. There is also a small bear proof public cabin that you can store all of your food in for safety. Campground has a lot of trees which were a welcome site compared to other campgrounds we stayed in. If you get to the park before it fully shuts down for snow, you can drive into the first 30 miles in your private vehicle. It is very worth it! Don't miss hiking the Savage Loop trail. Wonderful views and an easy hike!