response: Oh that would be the National Park  Service.
original_response: I think what makes it the best is that Land on either side of the road is owned and maintained by the National Park Service
history: Hi buddy, I like to travel more. Hiya!  Have you heard of Blue Ridge Parkway?  It's an All-American Road, known for it's scenery. Yes It is colourful mountain.The Blue Ridge Mountains are noted for having a bluish color when seen from a distance. Wow!  That parkway runs through 29 counties of North Carolina and Virginia.  It links two national parks, Shenandoah and Great Smoky Mountains. Hmm sounds like a gorgeous drive.  Is it popular? It's the unit that's most visited in the National Park  System annually since 1946, except for 3 years! Wow that makes me want to go even more.  Who maintains it?
knowledge: Land on either side of the road is owned and maintained by the National Park Service, and in many places parkway land is bordered by United States Forest Service property.