The author of _Doniphan's Expedition_ says:
In approaching the Arkansas, a landscape of the most imposing and picturesque nature makes its appearance. While the green, glossy undulations of the prairie to the right seem to spread out in infinite succession, like waves subsiding after a storm, and covered with herds of gambolling buffalo, on the left, towering to the height of seventy-five to a hundred feet, rise the sun-gilt summits of the sand hills, along the base of which winds the broad, majestic river, bespeckled with verdant islets, thickly beset with cottonwood timber, the sand hills resembling heaps of driven snow.
I refer to this statement to show how wonderfully the settlement of the region has changed the physical aspect of that portion bordering the Arkansas River. Now those sand hills are covered with verdure, and this metamorphosis has taken place within the last thirty years; for the author of this work well remembers how the great sand dunes used to shine in the sunlight, when he first saw them a third of a century ago. In coming from Fort Leavenworth up the Smoky Hill route to the Santa Fe Trail, where the former joined the latter at Pawnee Rock, the contour of the Arkansas could be easily traced by the white sand hills referred to, long before it was reached.
On the 15th of July the combined forces formed a junction at Pawnee Fork, now within the city limits of Larned, Kansas. The river was impassable, but General Kearney, with the characteristic energy of his family, determined not to be delayed, and to that end caused great trees to be cut down and their trunks thrown across the stream, over which the army passed, carrying in their arms the sick, the baggage, tents, and other paraphernalia; the animals being forced to swim. The empty bodies of the wagons, fastened to their running gear, were floated across by means of ropes, and hauled up the slippery bank by the troops. This required two whole days; and on the morning of the 17th, not an accident having occurred, the entire column was en route again, the infantry, as is declared in the official reports, keeping pace with the cavalry right along. Their feet, however, became terribly blistered, and, like the Continentals at Valley Forge, their tracks were marked with blood.