"Nancy" was built south of Detroit along the Rouge River for the fur trading company Forsyth, Richardson and Company of Montreal. (Although Detroit was by rights on American territory, it was not handed over to the United States until the Jay Treaty was signed in 1796.) At this time the company was one of the several merchant firms based in Montreal that made up the loose partnership known as the North West Company. The Indian trade on the Great Lakes was conducted by larger sailing vessels whereas birchbark canoes remained the principal means of transport in the fur trade of the Canadian north-west via the Ottawa River.