With them he traveled westward still, across the Wind River Mountains and the Teton Mountains into northeastern Idaho. For the first time the eyes of a white American saw this wild and grandly beautiful scenery of a hunter's paradise. He had traveled by canoe and foot and horse about five hundred miles. Here he met the Flathead Indians, with whom he had made friends when with Captain Lewis and Lieutenant Clark. Here he met the Blackfeet, too--fifteen hundred of them on a horse-stealing expedition. But he met them in battle. He was with the Crows and Flatheads, and of course had to aid his own party. It was do or die, because the Crows and Flatheads numbered only eight hundred. He showed them how a white man could fight; he was wounded in the leg, the Blackfeet were driven off, they had seen him as a leader in the ranks of their enemies, they refused to forget, and ever after that they were the sworn foes of the whites. There was no use now in his trying to talk with the Blackfeet. If they caught him they'd kill him. He'd better avoid them. The Crows were afraid to guide him far, and he struck out alone for Manuel's Fort, and made his own trail. Possibly the Crows had told him of a "big-medicine" country--a region of bad and good spirits, lying between him and the Big Horn, and into which few Indians ventured. It promised to be a safe trail, he was not afraid of "spirits"--preferred "spirits" to the Blackfeet; he struck out, and plunged into the wonders of the Yellowstone Park. He arrived at Lisa's Fort (which was another of its names) without trouble, and full of stories about hot geysers and boiling mud and strange colorings. For many years nobody believed his stories; they were only "trapper yarns;" but there he had been, in this year 1807, and had had the place all to himself. Trader Lisa was not satisfied. He wished furs, and more furs; he wished the Blackfeet furs, as well as the Crow and Flathead and Sioux furs. In the spring of the next year he sent Trapper Colter out again, to seek the Blackfeet, make peace with them, and urge them to come in Fort Manuel. By this time they probably would have forgiven the one white man who had been in a tight fix and obliged to fight whether or no. John Potts agreed to go with John Colter. They were comrades of old. John Potts was another of the Lewis and Clark men: had served as a soldier enlisted at Carlisle Barracks, Pennsylvania, by Captain Lewis himself. He had joined the Trader Lisa company at St. Louis, a year ago, and on the way up-river had been glad to meet John Colter. It was a reunion.