Political Geography: Borders | Nuevas Geografías | Scoop.it
The American-Canadian border, famously said to run straight across the 49th parallel for hundreds of miles, is neither straight nor along the 49th parallel.


This is a good historical way to discuss the stages of border creation, especially demarcation and delimitation.  The history of where to place a border, as the border itself, is not so straight forward.   

Via Seth Dixon