I can tell you that here in Calgary we have more in common with Montana than we have ever have with Toronto or New York.
On the books for a trade
Canada to give up Alberta, Saskatchewan,NW Territories, and a province to be named later (BC without Vancouver)
US to offer: New England (ME, Vt, NH, MA, CT, RI), NY, WA (East of the Cascade MTs not including Bremerton/ Bangor) and as a throw in PA East of the Susequahna River)