8 hrs from MD, fun for kids, 50 amp, prefer state parks?

Gettysburg. Stay at Gettysburg Farm CG. It's a Thousand Trails CG, but they do allow a certain number of general public campers to come in. Boys 6 and 8 will love the fact they can interact with the animals - biggest hit with my godchildren. Several on-site playgrounds, gameroom, putt-putt, and pool. You are then close to everything about Gettysburg, the Elephant Museum (hold onto the kids there), fantastic mini-golf and ice cream establishment near by, you can go for a float or paddle, and much more...