They took a company of thirty-one men enlisted as soldiers and boatmen and interpreters. Among them there were nine of the Kentucky Long Hunters. It is said that Lewis Wetzel joined, but he dropped out. John Colter, of Maysville on the Ohio River at the mouth of Limestone Creek, opposite West Virginia, was another. He went through.

Ten years before, Daniel Boone had moved west, into Louisiana Province while it was owned by Spain. He had settled in central Missouri, on the Missouri River above St. Louis; wanted "elbow room," he said—and the Spanish governor gave him eight thousand five hundred acres of land. Colonel Boone the Big Turtle was the first of the American dead-shots in the new West. When the Lewis and Clark men toiled up-river here he still was, living among the French in the very last white settlement.

He was not to be alone long. Many another Kentuckian and Carolinan and Tennesseean and Virginian had been thinking of a try at Boone's latest hunting-grounds; they remembered that he had made a good choice when he picked Kentucky: and now that the country yonder was being opened by Americans for Americans they pressed after Lewis and Clark—their own kind. There were furs to be found, under American protection, and sold at St. Louis, an American city.

So when in the summer of 1806 the Lewis and Clark men were on the down-river trail, bound for St. Louis again, on the Missouri below the mouth of the Yellowstone River away up in North Dakota they met two American trappers, Forest Hancock and Joseph Dickson, hailing last from Illinois.

John Colter, of the nine Kentuckians, thought that this was a good chance for him. The two free-trappers had been in here for two years—had set out right on the heels of the exploring party; they had caught many beaver and were doing well. They turned back, for fifty miles, with the company. On the way down John Colter arranged to become their partner. Captain Lewis gave him his discharge; and instead of going home he stayed, to be a trapper.

This land of high bare plains and snow-tipped, rock-ribbed, pine-clad mountains was very different from the forests of the Ohio region; but he had learned a great deal during his two years' trip. He was no greenhorn. He could take care of himself—he had been farther than Hancock and Dickson, felt no more fear of the Western Indians than he did of the Eastern Indians. After all, an Indian was an Indian, although these plains Indians like the Sioux and Blackfeet numbered thousands and seemed to think themselves much better than the white man.

In the fall his partners went "out," to take their furs to St. Louis. He remained in, and spent the winter alone, up the Yellowstone River of Montana, which was Blackfoot country. Captain Lewis had had trouble with the Blackfeet. They had tried to rob him, and two had been killed. But the Blackfoot head chief announced that this had served his young men right, and that the other Blackfeet bore the Americans no ill will.

Therefore Trapper Colter passed the winter in peace. The Crows, who also claimed the Yellowstone, did not molest him, either. In the spring he was taking the lone trail for St. Louis, when he met a company of American and French fur-hunters under Manuel Lisa, a swarthy Spaniard. They were coming in to build a trading post among the Blackfeet or Crows.

Trapper Colter had reached the mouth of the Platte River, in Nebraska—was almost "home," to the States, after an absence of three years; but he cared little. Trader Lisa wished him to be their scout to the Yellowstone and help them with the Indians; so he promptly turned around and took the back trail. He loved the trapper's life.

They built the post, named Manuel's Fort, beside the Yellowstone at the mouth of the Big Horn River in southeastern Montana. Trader Lisa found out that the Blackfeet were friendly; but their trade was not enough for him. He coveted the furs of the Crows and other Indians. John Colter was the man to carry the word that a trading post had been "brought" to the Yellowstone, and that all Indians were invited to visit it. He set out with the news.