I've seen a few threads on the subject but dont have much of an idea how to find them.
Are there enough places that qualify a list could be created?
I've done Compton Gap to Boiling Springs and am now outside of the range my wife will shuttle me.

So my criteria for candidates would be bus/train access to the general area and less than say 60 miles with a local shuttle service. Of course any such places would require a corresponding exit, in my case I'd be looking at 50-100 mile sections as optimal for my usual week to 10 day outings- I'm not into big miles, I prefer to leave a lot of fuel in the tank each day just in case.

Given my criteria are pretty specific, I'd welcome responses which dont match in the hope it will help others with the same idea.