Special Reports

The Commission publishes Special Reports at different intervals to update the geographical coordinates of a section of the boundary and to gather information on the maintenance of a section. Report published prior 2016 are not available online, but you can contact us if you need a copy.

  • Special Report 1 - Source of the St. Croix River to the mouth of the St. Francis River, 1956
  • Special Report 2 - Mouth of Niagara River to the head of the St. Clair River,1957
  • Special Report 3 - Source of the St. Croix River to the Atlantic Ocean, 1962
  • Special Report 4 - Arctic Ocean to Mount St. Elias, 1966
  • Special Report 5 - St. Lawrence River, 1967
  • Special Report 6 - St. Francis River to the St.Lawrence River, 1983
  • Special Report 7 - St. Lawrence River to Lake Superior, 1986
  • Special Report 8 - Southwest and South Lines, 2017
  • Special Report 9 - Southwest Branch of the St. John River, 2017