One of the most important burial mounds opened in this district by the employés of the Bureau is situated on the bluff which overhangs East Dubuque (formerly Dunleith), Jo Daviess County, Illinois. As I shall have occasion to refer to others than the one mentioned, I give in Fig. 15, Plate III, a plan of the group, and in Fig. 16, same plate, a vertical section of the bluff along the line of mounds numbered 13, 14, 15, 16, and 17, in which is seen the general slope of the upper area. The mounds of this group are conical in form, varying from 12 to 70 feet in diameter and from 3 to 12 in height. All appear to have been built for burial purposes. In No. 5, the largest of the group, measuring 70 feet in diameter and 12 feet in height, a skeleton, apparently an intrusive burial, was found at the depth of 2 feet immediately below the apex. Near the original surface of the ground, several feet north of the center, were the much-decayed skeletons of some six or eight individuals of every size from the infant to the adult. They were placed horizontally at full length with the heads toward the south. A few perforated _Unio_ shells and some rude stone skinners and scrapers were found with them. Near the original surface, some 10 or 12 feet from the center, on the lower side, was discovered, lying at full length on its back, an unusually large skeleton, the length being something over 7 feet. It was all distinctly traceable though it crumbled to pieces immediately after removal from the hard earth in which it was encased. With it were three thin, crescent-shaped pieces of roughly-hammered native copper, respectively 6, 8, and 10 inches in length, with some small holes along the convex margin; also a number of elongate copper beads, made by rolling together thin sheets, and a chert lance-head 11 inches long; the latter was placed near the left thigh. Around the neck were the remains of a necklace of bears' teeth. Lying across the thighs were dozens of small copper beads, evidently formed by rolling slender wire-like strips into small rings. The assistant who opened this mound, and who is personally well acquainted with Indian habits and customs, suggests that these beads once formed the ornamentation of the fringe of a hunting shirt. As No. 4 of this group presents some peculiarities, I take the description from Colonel Norris's notes: