During the next two decades they created a vast network of forts and stations, and reduced the country contiguous to the River and its tributaries to a system so elaborate and interesting as to be worthy of extended study. We can sketch only its more general features. And the more perfectly to understand them, we must arrest here the story of the great Canadian monopoly and bring up the movement of the American fur companies.
It may be noted, first of all, that by reason of the quicker colonisation and settlement and consequent establishment of agriculture and other arts pertaining to home life, the region of the United States east of the Mississippi never became the natural habitat of the trapper and fur-trader to anything like the degree of Canada and the western part of our own land. Nevertheless extensive fur interests grew up on the Mississippi during the French régime, and in 1763-4 August and Pierre Choteau located a trading post on the present site of St. Louis, and the fascinating history of that great capital began.
Most of the American trading companies confined their operations to the east side of the Rocky Mountains. But the Missouri Fur Company of St. Louis, composed of a miscellaneous group of Americans and Hispano-Gallo-Americans, under the presidency of Manuel Lisa, a bold and enterprising Spaniard, took a step over the crest of the mountains and established the first trading post upon the waters of the Columbia. This was in 1809. Andrew Henry, one of the partners of the aforesaid company, crossed the mountains in that year and a year later built a fort on a branch of Snake River. This seems to have been on what
