The US / Canadian border in the West is interesting. It seems between west of the great lakes and east of Seattle there isn't much connection across the border.
The US / Canadian border in the West is interesting. It seems between west of the great lakes and east of Seattle there isn't much connection across the border.
Alberta bumps up to ~3.7 million, and the connections start to increase.
I really wanted to look at the map in the context of where actual countries were so I threw together a Google Maps overlay. I couldn't believe how accurately the connections followed country lines, it was amazing!
It is a lot easier to move around and work on one side of the border or the other, which leads to people naturally not meeting people on the other side.
In the east there are so many more people and there is so much cross border traffic due to trade (particularly from the auto industry) that a lot more cross border connections exist.
http://en.wikipedia.org/wiki/Stanstead,_Quebec#Geography
Check out the library:
http://en.wikipedia.org/wiki/Haskell_Free_Library_and_Opera_...
http://www.time.com/time/printout/0,8816,948520,00.html
As for the west coast, let's not forget about the geographical anomaly known as "Point Roberts":