The very next day, July 19, 1806, Toussaint Charbonneau reported seeing an Indian on the high lands south of the river. Then Clark himself saw smoke in the mountains, in the same direction he had noticed it on the 18th.
On the 20th the contingent camped near today's tiny settlement called Park City, and began carving out a couple of cottonwood canoes. That night, beneath a waxing crescent of moon, some Indians--almost certainly Crows--made off with half their horses.1 At dawn, Clark immediately sent George Shannon, William Bratton and Charbonneau to hunt for them.
Young Shannon's courage seems extraordinary, but it was routine for the members of the Corps of Discovery.
Clark ordered three men to guard the balance of their herd that night, but "on their approach near the horses were So alarmed that they ran away and entered the woods and the men returned."
On the 21st, Clark dispatched Pryor, Charbonneau, Windsor and Labiche on the same sort of mission. But the plains were so dry and hard that no tracks could be found. Meanwhile, the knowledge that they were being watched, and that those watchers were very bold and stealthy, must have made every member of the party somewhat on edge.
On the 23rd,
On the 24th Clark and seven men--Bratton, Gibson, Hall, Labiche, Shields, Charbonneau and York--plus Sacagawea and baby Jean Baptiste, set out in the two small dugouts, which are lashed together for stability. Sergeant Pryor, with Privates Shannon and Windsor, proceed down the north side of the river with the remaining 24 horses. That evening they drive the horses over to the south side of the river, and ferry across the three men, plus Private Hall. Pryor and his three men are to take the horses back to the Mandan Villages, leave about half of them there, and take the rest up to Fort Assiniboine.
Now they are more vulnerable than they have ever been. Their survival is in the hands of the Crow Indians. On the night of the 25th, under an almost full moon, someone creeps to within 100 yards of where Pryor and his men lie sleeping, and makes off with the rest of the horses.
The "chapter of accidents" isn't over. In the middle of the night after the horses are stolen, a wolf bites the sleeping Pryor on the hand, and then goes after Windsor. Quick-shot Shannon promptly sees to it that the wolf has a fatal accident.
1. Upon leaving Travelers' Rest on July 3, Clark's group had 49 horses, of which nine of the most valuable were stolen during the night of the 6th--by Shoshone "spies," Clark figured. Sentries were posted every night, but their primary duty was to guard the camp. Horses will feed all night, moving continually in search of more grass. Even hobbled horses can move faster than person can run, if they want to. Picketing (tying horses to trees or picket pins) is impractical with a herd as large as 50.