Lewis and Clark set out through the Missouri river through intense cold winds. Clark writes, "I went up this river three miles to a butifull Plain on the upper Side where the Panias once had a Village this river widens above its mouth and is devided by Sand and Islands, the Current verry rapid, not navagable for even Canoos without Great dificulty owing to its Sands; the colour like that of the Plat is light the heads of this river is not known, it Corns into the Missourie from the S. W. by West, and I am told that is Genl. Course Some distance up is parrelel with the Missourie."