When in 1634 Jean Nicollet visited the Wisconsin country the French advance into the upper Northwest had begun.[2] From 1658 to 1660 Radisson and Groseilliers wandered among the tribes and brought the first canoe loads of furs to Canada from the far West. Then along with the missionaries, Hennepin and Marquette, came the coureurs des bois, Nicholas Perrot and Daniel Greyloson Duluth. It is unnecessary to recite in detail the exploits of these Frenchmen and their successors.[3] For a century the songs of unknown boatmen rose from the waters of the western rivers; unknown traders smoked in the lodges of Sioux and Chippewas; and hardy wanderers whose feats of discovery are unrecorded, leaving behind the Missouri River, saw from afar the wonders of the “Shining Mountains”.[4] But if no record of them remains, their influence was lasting. Living with the natives, supplying their needs by barter, and marrying the Indian girls, the French gained a remarkable power over the northwestern tribes, which caused them to consider whoever came from Canada their friend, even after the English government had supplanted the French in power.

West of the lakes the transition from the French to the English rule created no disturbances, such as Pontiac's conspiracy which so completely disrupted the trade in the East.[5] Continuing the French policy and also their posts and voyageurs, the Scottish merchants of Montreal, organized in 1784 as the North West Company, pushed westward from Green Bay and southward from Lake Winnipeg. This advance was continued until the opening years of the next century. Although on nominally Spanish territory, the tribes on the upper Missouri were won from the Spanish traders at St. Louis by such severe cutting in prices that the latter could not compete. The posts of the North West Company on the Red River of the North became the resort for many of the western tribes.[6]

The diverting of the trade of these natives, who would naturally have come down the Missouri where American traders could meet them and be benefited, was noticed by President Jefferson, who, on January 18, 1803, wrote to Congress: “It is, however, understood, that the country on that river is inhabited by numerous tribes, who furnish great supplies of furs and peltry to the trade of another nation, carried on in a high latitude, through an infinite number of portages and lakes, shut up by ice through a long season.” In this same message was included a recommendation that a small expedition be sent up to confer with the tribes with respect to the admission of American traders.[7]

But the purchase of Louisiana altered matters. It was not only a matter of trade, but one of sovereignty. A double movement was initiated: one to ascend the Mississippi under Zebulon M. Pike, and the other the Missouri under Captain Meriwether Lewis and Lieutenant William Clark. The reports of these two expeditions indicate how firm a grip the English traders had upon the Indians of the upper Northwest.

The expedition of Lewis and Clark ascended the Missouri and passed over the mountains to the Columbia River which was followed to the coast. The first winter, from late in October, 1804, to early in April, 1805, was spent in a fort which was constructed in the village of the Mandans, near the location of the present city of Mandan in North Dakota. Here was abundant opportunity to investigate the fur trade. Nor had they long to wait. On the 27th of November, seven British traders arrived from the North West Company's post on the Assiniboine River to barter with the river tribes. The next day, in council with the Mandan chiefs, the Americans warned the Indians not to receive medals or flags from the foreigners if they wished to be friends with the “Great American Father”. A day later this warning was communicated to the traders themselves who promised to refrain from any such acts.[8] How well they kept their promises later events showed. The Lewis and Clark expedition was only a passing pageant; for by the time of the War of 1812, the only American traders who ventured to do business on the upper waters were practically driven off by the foreign companies.[9]

The report of Zebulon M. Pike indicates that conditions were much worse on the upper Mississippi. Leaving St. Louis on August 9, 1805, he returned to that place on April 30, 1806. About two months were spent at a fort erected near the site of Little Falls, where he left a few men and pushed on with the rest of the company to Leech Lake. Conversation with the fur traders and councils with the Indians revealed the extent of the commerce of the North West Company. He heard of permanent trading posts on the south side of Lake Superior and at the headwaters of the St. Croix River; and he saw at Lower Red Cedar Lake, Sandy Lake, and Leech Lake the rude stockades and log buildings which were called forts.[10] These three posts were included in the “Department of Fond du Lac” and were the centers from which in the year 1805, trade with the Indians was carried on by one hundred and nine men.[11] By means of the rivers and portages of the wilderness the furs were brought to Canada without passing a custom house, and thus the United States was defrauded of duties which, it was estimated, would amount to $26,000 annually.[12]

Pike objected to many of the evident signs of British sovereignty: the British flag flying above the headquarters of the department of Fond du Lac was shot down;[13] many of the Indians were induced to give up their British medals and flags;[14] and Hugh M'Gillis, agent of the company for the district, in response to Pike's letter of complaint, promised in the future to refrain from displaying the British flag, presenting medals, or talking politics to the Indians.[15] But his promises were no more seriously given than those of his brethren on the Missouri.

Little of permanent value would have been accomplished if the acts of the explorer on September 23, 1805, had been omitted. The instructions issued to Pike on July 30, 1805, stated: “You will be pleased to obtain permission from the Indians who claim the ground, for the erection of military posts and trading-houses at the mouth of the river St. Pierre [the Minnesota River], the falls of St. Anthony, and every other critical point which may fall under your observation; these permissions to be granted in formal conferences, regularly recorded, and the ground marked off.”[16]

When Pike reached the mouth of the Minnesota River, the natural features of the locality convinced him of the advantages which would arise from a fort located at that point. From the high bluff lying between the Minnesota and the Mississippi rivers the course of both streams would be under the sweep of the guns. Sheer walls of stone rising from the Mississippi could prevent invasion; and the fur trading business could be regulated, as all boats entering or leaving the Indian country must use one or the other of the two rivers.

A “bower” was constructed of sails, and on September 23rd Pike spoke to the Sioux Indians there assembled concerning the transfer of Louisiana, the futility of their wars with the Chippewas, and the evils of rum. He asked them to cede to the United States lands for military posts, and dwelt on the value of these posts to the Indians. To this the chiefs assented, receiving in return presents valued at $200 and sixty gallons of liquor. The terms of the treaty provided that the Sioux should cede to the United States tracts “for the purpose of establishment of military posts,” at the mouth of the Minnesota and at the mouth of the St. Croix. A money consideration was also mentioned, but a blank was left which was later filled in by the Senate with $2000.[17]