US- Canada Border Data from the International Boundary Commission
Mapping Data available for download.
Note: The data in Section L is miss-indexed at index numbers 10010-10450 and 14590.
Note: Section C index number 10710 should probably be Longitude 17 minutes.
Note: Section I index number 04810 should probably be Longitude 27 minutes.
Note: Section L index number 14590 should probably be Longitude 55 minutes.
Note: One of either Section H index number 16390 or 16400 may possibly have a bad Latitude.
Note: This data was obtained from the International Boundary Commission,
United States Section. Every effort was made to accurately depict this data.
In certain instances an interpretation of this data was made which may not
reflect the legal position of the United States or Canada.