The Konzas, or Konzays, as it is pronounced by the Indians, is made up of two considerable streams, heading in the plains between the Platte and Arkansa rivers, called the Republican and Smoky-hill forks; tributary to the former of these, are the Solomon's and Salim forks, of less magnitude, rising also in the same plains. The Konzas is navigable only in high freshets for boats of burden, and on such occasions not more than one hundred and fifty or two hundred miles, the navigation being obstructed by shoals. {229} The character of this river and its several branches is similar to that of the Platte and its tributaries. Woodlands are seldom to be met with, except in narrow skirts and small copses along the watercourses. Much of the country situated upon its forks is said to be possessed of a good soil, but is rendered uninhabitable for want of timber and water. The bottoms are possessed of a light sandy soil, and the uplands are in many places characterized by aridity and barrenness. The surface for the most part is rolling, but in some instances inclines to hilly. That portion of the Arkansa included within the section under consideration has a bed or channel varying in width from four hundred yards to more than a mile, exclusively of islands. In the neighbourhood of the mountains, its width does not exceed fifty or sixty yards, gradually growing wider in its progress downward. Its valley, for a distance of more than one hundred miles from the place where it issues from the mountains, contains a considerable timber-growth, principally of cotton-wood, in skirts bordering upon the river, which occasionally embosoms islands clad in the same kind of growth. Every appearance of timber, however, is lost on a further progress eastward, and nothing is presented to variegate or adorn the prospect inland, but a broad expanse of waving prairies. Proceeding eastward along the river, its valley gradually widens, and the bluffs or banks by which it is bounded become less elevated and abrupt. The bottoms rise but a few feet above the water-level of the river, but the freshets, having a broad bed like that of the Platte to expand upon, seldom rise so high as to inundate the bottoms. This part of the Arkansa, as before hinted, cannot be considered as navigable, except for boats of light burden during the prevalence of a freshet. In a very low stage, the river is said to disappear in many places, the {230} whole of its water passing off through the immense body of sand of which its bed is composed.