Yes they do have first come first serve camp sites. Also they have very convienently placed water stations and vaulted toilets. To top it off they leave some wood available for fires, if you're willing to search. Happy CAMPING to you!
Yes, it it self service system. You find a site that is available, and then you place the paid ticket in the assigned post. Make sure you set up your camp as soon as possible. Some people don't have the decency to respect your ticket if there is no tent there.
Thanks! Your answer is awaiting moderation.