These two Indians proved to be spies or scouts of a large war party encamped about a league off, and numbering two hundred and eighty lodges, or about six hundred warriors, of three different tribes of Sioux; the Yangtons Ahna, the Tetons Bois-brule, and the Tetons Min-na-kine-azzo. They expected daily to be reinforced by two other tribes, and had been waiting eleven days for the arrival of Mr. Hunt's party, with a determination to oppose their progress up the river; being resolved to prevent all trade of the white men with their enemies the Arickaras, Mandans, and Minatarees. The Indian who had galloped off on horseback had gone to give notice of the approach of the party, so that they might now look out for some fierce scenes with those piratical savages, of whom they had received so many formidable accounts.
The party braced up their spirits to the encounter, and reembarking, pulled resolutely up the stream. An island for some time intervened between them and the opposite side of the river;but on clearing the upper end, they came in full view of the hostile shore. There was a ridge of hills down which the savages were pouring in great numbers, some on horseback, and some on foot. Reconnoitering them with the aid of glasses, they perceived that they were all in warlike array, painted and decorated for battle. Their weapons were bows and arrows, and a few short carbines, and most of them had round shields. Altogether they had a wild and gallant appearance, and, taking possession of a point which commanded the river, ranged themselves along the bank as if prepared to dispute their passage.