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David Thompson, Legendary Mapmaker
After Britain successfully defended its remaining North American lands in 1814, the two countries established relations civilized enough to enact an International Boundary Commission according to the 1814 Treaty of Ghent. The Commission enlisted David Thompson (legendary explorer/mapmaker credited with reaching the Pacific Ocean via the Columbia River in the late 1700’s) to survey the Canadian/American boundary from St. Croix River west to the Lake of the Woods.

Cairns Still Standing: David Malaher, in the Rupert’s Land Newsletter, No. 7, writes about his recent search for Thompson’s survey markers left at 4 locations, sites for the Commission to consider when making the final boundary decision about the most northwesterly point of the western side of Lake of the Woods. Thompson chose the Northwest Angle Inlet (the ultimate choice of the Commission), Monument Bay, Portage Bay and Rat Portage. Malaher reports finding two stone cairns erected by the Thompson survey.

The final boundary cuts between Ontario and Minnesota west from a point south of Thunder Bay, turning northward at Rainy River, through Lake of the Woods past Big Island, then west to turn south again along the Manitoba border. This unusual cut north, then west, then south leaves a small portion of the United States entirely unattached to the America mainland which is accessible only west through Manitoba or south across the lake.
The Dawson Trail

By the 1820’s, the fur-trading rivals Hudson’s Bay Company and the Northwest Company had merged, freeing the area to more trade with less competition. Rivalry between Britain and America for nation building continued, though. To encourage settlement and to exert authority over the Canadian west being opened by exploration and considered for annexation by the United States, the Canadian government purchased land from the Hudson’s Bay Company to develop in the south, and in 1857, engaged Simon J. Dawson to survey and construct a road between Lake Superior and the Red River.

After exploring the area, Dawson began work in 1868 to build the road from Fort William to Fort Garry, along the fur-trader routes to Lake of the Woods. This route was across land to Lake of the Woods, then by water to the northwesterly corner of the lake, where construction of the road was to recommence towards the Red River. While one crew worked from east to west, another had begun building in the west, and was moving eastward to meet near Lake of the Woods.

The Metis of the Red River area responded with anger when the survey’s chains made inroads onto their lands; this uprising pushed the government into investing more money to get the work done quicker, so that they could send troops to deal with the Metis. To get there, those troops had to assist in the road construction. When the workers reached Lake of the Woods, the soldiers did not stay around to help. They hurried forward by the old Winnipeg River canoe route north out of Lake of the Woods to enforce the peace at the Red River settlement. Dawson Trail was completed, but was widely used for only a few years, as by the 1800’s, the Canadian Pacific Railway became the favoured transport west.

When the Dawson Trail was the only Canadian route to the prairies, more than 3,500 immigrants travelled it, heading for settlements to the west. Today, the Northwest Angle section of the trail from the Manitoba border to the western shore of Lake of the Woods, is a swampy, wooded, obscured trail. At the trail’s end, on Harrison Creek, are remnants of the buildings that once provided rest and comfort to 19th century travellers along their journey to new homesteads.

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