The journal says:-- "After passing one continued rapid and three cascades, each three or four feet high, he reached, at the distance of five miles, a second fall.

The river is here about four hundred yards wide, and for the distance of three hundred rushes down to the depth of nineteen feet, and so irregularly that he gave it the name of the Crooked Falls.

From the southern shore it extends obliquely upward about one hundred and fifty yards, and then forms an acute angle downward nearly to the commencement of four small islands close to the northern side.

From the perpendicular pitch to these islands, a distance of more than one hundred yards, the water glides down a sloping rock with a velocity almost equal to that of its fall: above this fall the river bends suddenly to the northward.
While viewing this place, Captain Lewis heard a loud roar above him, and, crossing the point of a hill a few hundred yards, he saw one of the most beautiful objects in nature: the whole Missouri is suddenly stopped by one shelving rock, which, without a single niche, and with an edge as straight and regular as if formed by art, stretches itself from one side of the river to the other for at least a quarter of a mile.

Over this it precipitates itself in an even, uninterrupted sheet, to the perpendicular depth of fifty feet, whence, dashing against the rocky bottom, it rushes rapidly down, leaving behind it a sheet of the purest foam across the river.