[ZitchDog]

Distance from a cell tower might be a good metric.

[davidw]

This is another fun way of looking at it:

http://www.datapointed.net/2010/09/distance-to-nearest-mcdon...

With a little bit less serious take on the trek to the spot:

http://www.datapointed.net/2010/10/the-farthest-place-from-m...