Can I bringwood to burn at my campsite, wood from York county.

General rule is 50 miles. If you are travelling less than that it's ok. Although some would argue it should be closer to 20 miles.

I've taken my own. I check it carefully for bugs, etc before putting it in my truck. When I get there, I keep it in the truck. I don't make a wood pile. The wood goes straight from truck to fire. Anything not burned comes back home with me.

There's a sign no outside due to spreading disease and bugs. They have it onsite.

Yes. A lot of people bring their own wood.