Eats on The Airline, the section of Maine Route 9 between Bangor and Calais, a traditional route from northern New England to Canada’s maritime provinces. Accounts differ on why it’s called The Airline, but apparently it’s because Route 9 is a shortcut across northeastern Maine. And there is something about it, cruising along rolling, glaciated hills in the north woods past blueberry fields and old cemeteries, that makes you feel as though you are up high and remote. Definitely remote. Take a look at a map. Still enough business for Mace’s American Snackbar and Grill in Aurora though.