AN EXPLORATION OF THE COUNTRY
LYING BETWEEN THE
MISSOURI RIVER AND THE ROCKY MOUNTAINS,
ON THE LINE OF THE
KANSAS AND GREAT PLATTE RIVERS.
___________________________
Washington, March 1, 1843.
To Colonel J.J. Abert, Chief of the Corps of Top. Eng.
Sir: Agreeably to your orders to explore and report upon the country between the frontiers of Missouri and the South Pass in the Rocky Mountains, and on the line of the Kansas and Great Platte rivers, I set out from Washington city on the 2d day of May, 1842, and arrived at St. Louis by way of New York, the 22d of May, where the necessary preparations were completed, and the expedition commenced. I proceeded in a steamboat to Chouteau's landing, about four hundred miles by water from St. Louis, and near the mouth of the Kansas river, whence we proceeded twelve miles to Mr. Cyprian Chouteau's trading-house, where we completed our final arrangements for the expedition.
Bad weather, which interfered with astronomical observations, delayed us several days in the early part of June at this post, which is on the right bank of the Kansas river, about ten miles above the mouth, and six beyond the western boundary of Missouri. The sky cleared off at length and we were enabled to determine our position, in longitude 90° 25' 46", and latitude 39° 5' 57". The elevation above the sea is about 700 feet. Our camp, in the mean time, presented an animated and bustling scene. All were busily engaged in completing the necessary arrangements for our campaign in the wilderness, and profiting by this short stay on the verge of civilization, to provide ourselves with all the little essentials to comfort in the nomadic life we were to lead for the ensuing summer months. Gradually, however, every thing--the materiel of the camp--men, horses, and even mules--settled into its place; and by the 10th we were ready to depart; but, before we mount our horses, I will give a short description of the party with which I performed the service.