The best campground in the Mammoth Cave area is Cave Country in Cave City:
It's in a very convenient location right off I-65 (Exit 53 I believe) and behind the Cracker Barrel. It's just down the road from the park a few miles and in between Mammoth Cave and Glasgow for restaurants, etc. Full-hookups, pull-through sites, cable and wifi. They also have a large fenced dog play yard if you're bringing friends.
The only drawback is it's fairly close to some busy freight rail lines. That doesn't bother me as I sleep with my windows closed, but some have complained about that.
There are other campgrounds in that area, but I do not recommend them. The biggest is Jellystone, but the sites there were designed back in the 60s with big 5th wheels and Class As didn't exist.
Originally Posted by blazn2170
after getting some feed back from the forum we have decided the route we are taking and now looking for advice on possible campgrounds
1st stop will be land between the lakes,
2nd will be mammoth cave
3rd will be close to chicago,
4th wisconsin dells before arriving in shawano
and suggestions on camping spots
1) fifth wheel
2) prefer full hook ups
3) we will be 2 to 3 nights at each stop