On Thu, 06 Sep 2012 16:23:46 -0500, (Mark Brader) wrote:

Subject: airport runway on US-Canada border
Is there a runway that starts in one country and ends in another?

I've never heard of an example. As to the US-Canada border in
particular, it does cut through a number of buildings around
45.0057,-72.0977.

I do know of two airports in Europe where part of the airport
*boundary* is a national border -- Geneva International and
Gibraltar. And in Gibraltar's case the runway crosses the only
road that crosses the border.

http://en.wikipedia.org/wiki/Piney_P...Border_Airport

Here it is!