There should be a number to call. It is first come first serve. There are rv spots, so I assume generators are ok? The parking situation is 1 car per spot, we ended up parking our extra cars at Harrahs casino. It wasn't ideal but worth the whole experience. We had a great time.
You park at your camp site, it is first come first served. You drive around and find the spot you like. When I was there this past weekend a few people did have generatirs.
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