Those crazy minds at Google think of everything. The story probably wouldn’t have been quite as interesting had Bilbo been wandering around with a smartphone, though.
According to the folks over at Neatorama,
The map is of northern London, but you can overlay a map in your own city by choosing “The Shire” as your starting point and “Mordor” as the destination when searching for directions.
Have fun messing with impressionable young minds over the holidays!