world's largest go game ?

You know those circular irrigation systems they use for watering large fields of crops ?

And of course some of the circles are green if the field is in use and being watered, and a different color (some kind of brown) if that field isn't being used that particular year.

And you know how out in the mid-west United states the roads are laid out in almost perfect lattice work ?

Well, combine all of these, and you have the ingredients for the world's largest go game. Hmmm, calculate the size of the baord for a 19 x 19 .

Here's some pictures from the jet at 31,000 feet of the makings for such a game.