"Although, but a few days' travel above where we now were, the Canadian runs pent up in a narrow channel, scarcely four rods [or 22 yards] across, we here found it spread out to the width of from three to six hundred yards, and so full of sand-bars (only interspersed with narrow rills) as to present the appearance of a mere sandy valley instead of the bed of a river. In fact, during the driest seasons, the water wholly disappears in many places. Captain Boone (Nathan Boone, the youngest son of the noted pioneer Daniel.), of the U. S. Dragoons, being upon an exploring expedition in the summer of 1843, came to the Canadian about the region of our western boundary, where he found the channel perfectly dry. Notwithstanding it presents the face of one of the greatest rivers of the west during freshets, yet even then it would not be navigable on account of its rapidity and shallowness. It would appear almost incredible to those unacquainted with the prairie streams, that a river of about 1500 miles in length, and whose head wears a cap of perennial snow (having its source in the Rocky Mountains), should scarcely be navigable, for even the smallest craft, over fifty miles above its mouth."