. Bulletin. Ethnology. Riy. Bas. Sur. Pap. No. 7] OAHE DAM AREA, S. DAK., 1950-51—LEHMER 85 There was evidence of only a single component at the Phillips Ranch site, and it has been assigned to the Snake Butte Focus, The internal evidence which is discussed in detail in a later section indicates that the Snake Butte Focus follows immediately after the Stanley Focus in time. THE FEATURES THE FORTIFICATION DITCH The Phillips Ranch site was surrounded by a fortification ditch some 1,000 feet long. The ditch formed a rough ellipse with major axes approximately 230 by 330 feet. The depression which
. Bulletin. Ethnology. Riy. Bas. Sur. Pap. No. 7] OAHE DAM AREA, S. DAK., 1950-51—LEHMER 85 There was evidence of only a single component at the Phillips Ranch site, and it has been assigned to the Snake Butte Focus, The internal evidence which is discussed in detail in a later section indicates that the Snake Butte Focus follows immediately after the Stanley Focus in time. THE FEATURES THE FORTIFICATION DITCH The Phillips Ranch site was surrounded by a fortification ditch some 1,000 feet long. The ditch formed a rough ellipse with major axes approximately 230 by 330 feet. The depression which marked the location of the ditch at the time of excavation was from 5 to 18 feet wide and from 1 to 2 feet deep. There were no visible breaks in the ditch line, although the outer edge of the depression disappeared where it coincided with the terrace edge on the east side of the village. The ditch was cross-sectioned with two test trenches, and fah'ly ex- tensive excavations were made at a point near the north end of the ellipse. This was done to investigate a cutback in the inner wall of the surface depression which might have indicated an entrance to the village. It proved to be a slight offset in the line of the ditch proper. In cross section, the ditch appeared as an irregular U-shaped intru- sion of the refuse overburden into the native soil (fig. 37). The sides REFUSE i^ CHARCOAL LENS ^^ NATIVE SOIL. <^ t- HORIZONTAL SCALE IN FEET Figure 280460—54 7 -Cross section of the fortification ditch at the Phillips Ranch Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Smithsonian Institution. Bureau of American Ethnology. Washington : G. P. O.
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