Half a century later a party of trappers of the Hudson's Bay Company entered Nevada and plied their trade along the Humboldt river.
Emigrants to California followed the trappers, and many crossed Nevada in the early 'forties of the 19th century.
Their colonists were not farmers but trappers, woodrangers, coureurs du bois, who married Indian women, and formed a mixed race known as the bois brutes.
It was true that the most active French colonial element, the trappers, were barbarized by the natives, and that the pursuit of the fur trade and other causes had brought the French into sharp collision with the most formidable of the native races, the confederation known as the Five (or Six) Nations.
The report of Lewis and Clark attracted many traders and trappers, and within a few years the Missouri Fur Company, the Rocky Mountain Fur Company, the Hudson Bay Company and the American Fur Company had established fortified trading posts on the Missouri, the Yellowstone, the Marias, the Milk and other rivers; the most prominent among these was Fort Benton, which was established in 1846 at the head of navigation on the Missouri, and was made the headquarters of the American Fur Company.