Summer 2016 RV 1 month Where!?!?!?

Great suggestions here.
July is an excellent time to visit the Northeast US.Many interesting and fun towns to visit coastal or inland of Acadia National Park.

The Park and surrounding areas offer small town charm and some of the kindest folks we have ever met.

Exploring offers a wide range: hiking, tide pooling, many lakes for fishing, rock climbing, sandy beach or ocean cliff views, kayaking, sailing, bike rides on carriage roads and amazing scenic drives. History of the area and then there is... Lobster and Maine blueberries.We ate out a few times, we asked locals where to go.

We stayed in Blackwoods Campground, located within the park. Woke early several mornings, took a walk down the path to the seaside cliffs. Enjoyed our coffee watching the sun come up over the ocean.

Acadia National Park was a pleasant surprise, one of our favorite parks. We also enjoyed that you could get away from the crowds.

You'll want to make your decision and reservation soon to these more popular places.
Good luck ~

If you have the finances you could fly to Anchorage, Alaska and rent a RV. It would be quite a different experience for you. Driving to Alaska from North Carolina would be very tiresome if you only have a month. You'd be driving every day - not fun for the children.

Take a trip to Michigan, then cross the Mackinac Bridge to the Upper Peninsula and come down the Wisconsin lakeshore. The western side of Michigan and the beaches are awesome. Definitely work in Sleeping Bear Dunes National Lakeshore which is absolutely breathtaking. The whole area around Sleeping Bear is fabulous.

Drive up the Blue Ridge Parkway and into the Skyline Drive to its end, and then to Washington, DC. Stay at Cherry Hill Park. Then drive south in Virginia to Mount Vernon, Williamsburg, and to the Outer Banks in North Carolina. Then back home.

You narrowed your "curiosity" down to 4 areas, any of which would be a great choice to spend a month of vacation. Since you're most interested in them, go for one of them!

Obviously the southwest would be the hottest, but the merit of the Grand Canyon-Mesa Verde-Rocky Mountain Nat'l Park scenario is that RMNP will be cooler, and the Grand Canyon being high elevation, it won't be as deathly hot as other areas of Arizona. If your trip could be more June than July, I'd suggest starting with the Canyon & Mesa Verde first, RMNP last. It's driveable from NC, and there is a lot to be said for the perspective one gains from driving across the plains - the size of this country, what the pioneers went through to go across with ox-drawn wagons (and how motivated they were), etc.

With a month's time, you could also do Yellowstone/Tetons and Glacier, with some great stops on the way there & back in the Black Hills and at Devil's Tower and Little Bighorn National Battlefield. Weather can vary greatly in these locations, and a mostly-July schedule would work quite well; Glacier isn't usually fully open until after the 4th of July due to snow on the (one) main road through the park. Lakes & rivers will be cold, but you can arrange - especially in the plains - to stay at CGs with pools so the kids can swim there. This trip is also driveable in a month from where you are.

The Northwest and Alaska are pretty long drives from your location; for those you might consider flying and renting an RV there. In Alaska, don't miss Denali NP!

Yellowstone is fascinating and unique, and the older kids at least would find it fascinating. The youngest might get bored...but that's true most anywhere. I remember also thoroughly enjoying the Badlands as a young boy (I think around 10 years old)—it's great fun to climb around the formations.

Other possible suggestions—mix and match as you see fit:

The Blue Ridge Parkway/Skyline Drive—many opportunities for hiking and fantastic scenery.

The Henry Ford Museum and Greenfield Village

St Louis City Museum (and plenty of other things in St Louis—the arch, a fine zoo, some more museums etc. etc.). The City Museum is not a typical museum—its more of an exploratory playground/art project than anything.

Philadelphia—the historic sites and the art institute are great, among other things

New England offers a lot in the way of small towns and hiking and fishing and so forth. A tour through the Maine coast and the White Mountains would be lots of fun. Boston has an excellent children's museum and an excellent science museum (and horrible driving, particularly for an RV).

The Canadian Maritime provinces would be another great trip. You could read Ann of Green Gables on the way there.

The finger lakes region of New York has some wonderful parks and areas. Not far is Niagara Falls, too, which is impressive enough to see once.

If you like amusement parks, the northeast (and particularly Pennsylvania and surrounding areas) have a lot of nice ones. It sounds like that's not your first choice, though, which is perhaps for the better.

Two Hands wrote:
You should also consider Grand Canyon, Mesa Verde, and Rocky Mountain National Parks.

I have done that trip and you cant go wrong there.

With that age group forget about west of the Mississippi. Takes too much time and boring for the kids. I'd make a tour of the amusement parks east of the river including Cedar Point the roller coaster capital of the world. Throw in something for the adults like a boat tour of the Erie Canal out of Lockport, NY, maybe spend an afternoon at Niagara Falls. When in doubt do a Google search for `______ tourism' and put the state or city in the blank and read what the experts for their area suggest. Be sure to pick out campgrounds with a pool.

You should also consider Grand Canyon, Mesa Verde, and Rocky Mountain National Parks.

I'd say the Tetons, Yellowstone and Glacier National Park. They never disappoint. Happy camping!