Believe it or not, this is how most of Fairfax County looked. Except perhaps not quite as rolling. Mount Air, a former plantation located in Lorton, looked almost like this. As late as 1920, it was said that you could see straight from the third floor of the Manor all the way down to the Potomac River.
On my Flickr account, I mistakenly identified this location as Route 17 headed towards Winchester. Well, it's still Route 17—it's just not on the part I thought it was. I've marked the approximate location, taken somewhere north of Delaplane.