The border crossing at Emerson, Manitoba and Pembina, North Dakota is the fifth busiest along the Canada-United States border, and the second busiest west of the Great Lakes.
For many years, Emerson was among very few communities in Canada to have multiple border crossings, as it was serviced by both the current port of entry (originally designated as West Lynne) and the now-closed Emerson East port of entry opposite Noyes, Minnesota.