What is the only U.S. city from which you can drive due south into Canada? - TravelMamas.com
The United States of America and Canada have one of the the most stable and mutually-beneficial international relationships in the world. The United States-Canada border is the longest international border shared by two countries. The border is over 5,500 miles long. While almost all of Canada is located north of the U.S., you can get to Ontario, Canada by driving due south from...
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