Soon after the transfer of Louisiana to the United States Government several expeditions were sent out to explore the newly acquired domains and to discover the native tribes who claimed and occupied parts of the vast territory. Of these parties, that led by Capts. Lewis and Clark was the most important, but of great interest was the second expedition under command of Lieut. Z. M. Pike, which traversed the country extending from the Mississippi to the Rocky Mountains, and reached the Pawnee villages near the North Platte during the month of September, 1806. How long the Pawnee had occupied that region may never be determined, but they had evidently migrated from the southwest, probably moving slowly, making long stops on the way. As a tribe they were known to the Spaniards as early as the first half of the sixteenth century, and appear to have been among the first of the plains tribes to be visited by French and Spanish traders.

Unfortunately Pike did not prepare a very extensive account of the Pawnee as they appeared during the autumn of 1806, but wrote in part: "Their houses are a perfect circle, (except where the door enters) from whence there is a projection of about 15 feet; the whole being constructed after the following manner, Viz: 1st. there is an excavation of a circular form, made in the ground, of about 4 feet deep and 60 diameter, where there is a row of posts about 5 feet high, with crotches at the top, set firmly in all round, and horizontal poles from one to the other. There is then a row of posts, forming a circle of about 10 feet width in the diameter of the others, and 10 feet in height; the crotches of those are so directed, that horizontal poles are also laid from one to the other; long poles are then laid slanting, perpendicularly from the lower poles over the upper, and meeting nearly at the top, leaving only a small aperture for the smoke of the fire to pass out, which is made on the ground in the middle of the lodge. There is then a number of small poles put up round the circle, so as to form the wall, and wicker work run through the whole. The roof is then thatched with grass, and earth thrown up against the wall until a bank is made to the eves of the thatch; and that is also covered with earth one or two feet thick, and rendered so tight, as entirely to exclude any storm whatsoever, and make them extremely warm. The entrance is about 6 feet wide, with walls on each side, and roofed like our houses in shape, but of the same materials as the main building. Inside there are numerous little apartments constructed of wicker work against the wall with small doors; they have a great appearance of neatness and in them the members of the family sleep and have their little deposits. Their towns are by no means so much crowded as the Osage, giving much more space, but they have the same mode of introducing all their horses into the village at night, which makes it extremely crowded. They keep guards with the horses during the day. They are extremely addicted to gaming, and have for that purpose a smooth piece of ground cleared out on each side of the village for about 150 yards in length." (Pike, (1), Appendix, p. 15.)

Although Pike's account of this interesting tribe is very brief and unsatisfactory, it was soon to be followed by a more complete and comprehensive description. This refers to the notes prepared by members of the Long expedition, 14 years later.

The expedition under command of Maj. Stephen H. Long arrived at Council Bluff, "so called by Lewis and Clark, from a council with the Otoes and Missouries held there, on the 3rd of August, 1804," during the early autumn of 1819. Winter quarters were established at a point about 5 miles lower down the Missouri and at a short distance north of the present city of Omaha, Nebr. This was called Engineer Cantonment, and during the ensuing months many Indians visited the encampment to treat with Maj. O'Fallon, the commissioner.

Leaving the majority of the party in quarters at the cantonment, Maj. Long and others of the expedition, on October 11, "began to descend the Missouri in a canoe, on their way towards Washington and Philadelphia." Returning from the east they reached Engineer Cantonment May 28, 1820, having arrived at St. Louis April 24, "from Philadelphia to Council Bluff, to rejoin the party."

During the absence of the commanding officers some members of the expedition made a short trip to the Pawnee villages, and the following brief account appears in the narrative on May 1, 1820:

"At each of the villages, we observed small sticks of the length of eighteen inches or two feet, painted red, stuck in the earth in various situations, but chiefly on the roofs of the houses, each bearing the fragment of a human scalp, the hair of which streamed in the wind. Before the entrance to some of the lodges were small frames, like painter's easels, supporting each a shield, and generally a large painted cylindrical case of skin, prepared like parchment, in which a war dress is deposited. The shield is circular, made of bison skin, and thick enough to ward off an arrow, but not to arrest the flight of a rifle ball at close quarters.... The lodges, or houses, of these three villages, are similar in structure, but differ in size. The description of those of the Konzas will apply to them, excepting that the beds are all concealed by a mat partition, which extends parallel to the walls of the lodge, and from the floor to the roof. Small apertures, or doors, at intervals in this partition, are left for the different families, that inhabit a lodge, to enter their respective bed chambers." (James, (1), pp. 367-368.)

After the return of Maj. Long the reunited party left Engineer Cantonment, June 6, 1820, and soon reached the Pawnee villages, situated about 100 miles westward, on the Loup River, a branch of the Platte. The narrative of this part of the journey is most interesting: "The path leading to the Pawnee villages runs in a direction a little south of west from the cantonment, and lies across a tract of high and barren prairie for the first ten miles. At this distance it crosses the Papillon, or Butterfly creek, a small stream discharging into the Missouri, three miles above the confluence of the Platte."

After advancing for several days over the prairie, on June 10, "At sunset we arrived at a small creek, eleven miles distant from the village of the Grand Pawnees, where we encamped. On the following morning, having arranged the party according to rank, and given the necessary instructions for the preservation of order, we proceeded forward and in a short time came in sight of the first of the Pawnee villages. The trace on which we had travelled since we left the Missouri, had the appearance of being more and more frequented as we approached the Pawnee towns; and here, instead of a single footway, it consisted of more than twenty parallel paths, of similar size and appearance.... After a ride of about three hours, we arrived before the village, and despatched a messenger to inform the chief of our approach. Answer was returned that he was engaged with his chiefs and warriors at a medicine feast, and could not, therefore, come out to meet us.... The party which accompanied Major Long, after groping about some time, and traversing a considerable part of the village, arrived at the lodge of the principal chief. Here we were again informed that Tarrarecawaho, with all the principal men of the village, were engaged at a medicine feast.

"Notwithstanding his absence, some mats were spread for us upon the ground, in the back part of the lodge. Upon these we sat down, and after waiting some time, were presented with a large wooden dish of hominy, or boiled maize. In this was a single spoon of the horn of a bison, large enough to hold half a pint, which, being used alternately by each of the party, soon emptied the dish of its contents."