Fig. 2
HARROUN SITE
41 UR 10
MOUND A
contour interval = 0.5 feet
shading indicates excavated area
STRUCTURE OF MOUND A
The profiles revealed that the bulk of the mound fill comprised a single structural member composed of dark gray, humus stained, sandy, midden soil ([Fig. 3]). It reached a maximum height of 1.4 feet above the surface of the surrounding floodplain and extended down to an average depth of 1.4 feet below the floodplain surface. The fill of Mound A contained many tiny fragments of mussel shell, bone, charcoal, and stone chips, as well as a few potsherds, projectile points, and other artifacts. Some of the shell and bone fragments showed evidence of burning. The mound fill was unquestionably derived from an occupational area containing an appreciable quantity of cultural detritus.
The top of soil Zone IIb in the area surrounding the mound was, on an average, about 0.7 feet below the surface of the floodplain. The bottom of the mound structure, however, extended to an average depth of 1.4 feet below the floodplain surface where it terminated within Zone IIb ([Fig. 3]). Thus the surface of Zone IIb immediately beneath the mound formed a shallow, saucer-shaped depression which must have resulted from digging away of the topsoil before the mound was erected. This shallow pit (perhaps originally 1.0 to 1.5 feet deep) was approximately the same size and shape as the base of the mound.
OCCUPATIONAL FEATURES
Besides the mound itself, two occupational features were found in the Mound A area: (1) an area of burned soil within the mound fill (Feature No. 1), and (2) a sub-mound burial (Burial No. 1). Each is described separately below.
Feature No. 1
This was an elongated area of heavily burned, sandy clay lying within the matrix of the mound fill ([Fig. 3]). Since the northern end of Feature No. 1 was not completely excavated, the exact dimensions were not determined; but the maximum length was evidently between 9 and 10 feet, while the maximum width was 4.3 feet. The long axis ran approximately north-south. Profiles revealed a lenticular cross section with a pronounced thickened area near the mid-point of the east edge. Near the center the burned zone was 0.5 feet thick; the thickened area near the east edge reached a maximum thickness of 1.5 feet.