It was in the park itself on the valley floor
I think it was upper pine campground
You have to make sure the trailer fits very tight campsites We booked a campsite for a 18 ft trailer for our 22 ft Hilo normally I can fit anywhere but we had a tree and boulder in the way that I couldn't see in campsite photo online by disconnecting the trailer and putting the truck in a different spot and reconnecting, I got in
There are private campgrounds outside to park but you'll have to do a search on that