The Boundary Commission Trail Photos from the Manitoba Archives Sources and Additional Info... http://www.mhs.mb.ca/docs/mb_history/19/boundarycommissiontrail.shtml Over two summers, the Boundary commissioners, guided by Métis scouts, were followed by labourers breaking the trail and by surveyors traveling behind. While the British commissioners traveled very lightly armed, the Americans on the other side of the border were accompanied by heavy military escort. The Dakota, who hunted on both sides of the line often hostile towards Americans for establishing posts on sacred land and for ignoring and breaking treaties. Modern use of the trail began in 1873. The British and United States Boundary Commissioners followed a route along the 49th Parallel in their trek across the plains to mark the boundary between the U.S. and Canada.   Map by Doug Morrison / Deloraine Mb. Long River Turtle Mountain Souris River - Sourisford Souris River - Sourisford North America Boundary Commission camp at] South Antler Creek., Man. 1873 1st Crossing - Souris River 170 miles west of Red River & 10 miles north of Boundary. 1873 Sgt. Kay's Camp - North Antler River Photographers Sa ppers at a Boundary Mound Boundary Mound - Grand Coteau Station Metis Traders Wood Mountain Metis Hunter's Camp Dakota Grave Collecting Buffalo chips Souris River Commission Officers Turtle Mountain Depot Metis Scouts 1873 - Canasda Archives Photo TOP