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.
Now from Lisa's Fort they paddled up the Yellowstone again, down which they had come in 1806 with Lieutenant Clark, and crossed westward over the divide between the Yellowstone and the heads of the Missouri. This was the Three Forks country, of present southwestern Montana, where the Missouri split into three branches named by Captain Lewis the Madison, the Gallatin and the Jefferson. They knew it well; had they not worked hard here, when bound for the Columbia in the summer of 1805?
Likely enough they were not at all anxious to find the Blackfeet or to have the Blackfeet find them. The Blackfeet sometimes roamed here; so did the timid Snakes, descending from the mountains to hunt buffalo on the Missouri River plains in the east; so did the Crows. While spying around, they two built a canoe apiece and trapped beaver in the Jefferson River, over toward the mountains.
The beaver were as abundant as ever. To keep out of sight of Indians, they set their traps after dusk, ran them very early in the morning, and lay hidden all day. It certainly was not pleasant, to live like 'coons and owls, but so many furs were worth the trouble.
One early morning they were in their canoes, deep between the high banks, down toward the mouth of the river where it united with the Madison, when they heard a dull tramping in the valley.
"Harkee!" spoke John. "D'ye hear, Jack? That sounds like Injuns. We'd better drop our traps an' câche (hide) ourselves."
"Injuns nothin'!" John Potts laughed. "Them's buff'ler. Seems like every time the wind blows you're thinkin' 'Injuns.' Can't you tell buff'ler from reds? Or are you gettin' skeered out!"
"Jest as you say, then," the other John replied. "But if anything happens, don't blame me. I've a notion we ought to climb up an' spy 'round."
"If they're Injuns, our heads would give us away. We'll keep where we are, snug under the banks, an' they'll pass us by. But those are buff'ler, I tell you."