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The Blue Ridge Parkway is about 750 kilometers.
It connects Shenandoah National Park in Virginia with Great Smoky Mountains National Park in North Carolina. And is a beautiful drive with Incredible views. I did not remember the Laurel and Hardy clip. Ha! The song was familiar when I heard it, though. Actually, this was probably in North Carolina.

Thanks for your reply. A visit to the BRM has now been added to my bucket list. :)

You will not be disappointed!