The initial customs office was opened at Dupuis in June 1909, but was relocated closer to the border at Marienthal a month later.

[2] A North-West Mounted Police (NWMP) corporal was in charge during the first year and the Port of North Portal provided administrative oversight.

This practice continued until the Canadian Pacific Railway opened the east–west Neptune branch through Torquay in 1913.

[3] The United States continues to use the border station built in 1937, which was listed on the U.S. National Register of Historic Places in 2014.

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