Some More Border Airports

In my online surfing adventures, I stumbled across two more border airports that I wasn't aware of. Whetstone International Airport (AirNav page) is at the Del Bonita border crossing between Alberta and Montana. According to the airport diagram, the runway parallels the border just a few feet over on the Canadian side. Between Sweetgrass, MT and Coutts, AB, Ross International Airport (AirNav page) is actually on the international boundary.