40 BUREAU OF AMERICAN ETHNOLOGY [bull. 118 



south end of the mound was designated as Structure No. 1, Feature 

 No. 26. This structure proved to be 41 feet long and 26 feet wide. 

 The remains of the building under the north end of the mound was 

 designated Structure No. 2, Feature No. 27. It was found to be very 

 nearly the same size as Structure No. 1 and to have the same 

 orientation, as shown in figure 11. 



Structure No. 1 



This structure was erected by setting the base ends of vertical posts 

 in four trenches which formed a rectangle. The trenches were about 

 18 inches deep and 14 inches wide, and outlined the structure as 

 shown in plate 18. Figure 13 shows a ground plan of the structure. 

 The trenches were filled with dark loam and in some parts of the 

 trench showed a double row of post molds, one row down the center 

 and the other along the inner edge. Along the outer edge of the 

 trench and standing on edge were numerous flat stones, both lime- 

 stone and sandstone, which apparently were used to assist in sup- 

 porting and steadying the posts of the walls. With the exception of 

 the east wall, it was difficult to trace the post molds in the trenches, 

 due to the fact that the trenches were filled with soft black loam 

 which held the impressions of the mold very imperfectly and gen- 

 erally made digging and tracing of the molds very difficult. A con- 

 siderable part of this black loam which filled these trenches is be- 

 lieved to have been due to the decay of logs, laid horizontally against 

 the base of the vertical posts. These horizontal logs were held in 

 place by the flat stones chinked in behind them. The stones thus 

 appear at the bottom of the trench always on the outside, as illus- 

 trated in plate 19. However, on the north end of the structure a 

 portion of the trench was covered with hard clay which preserved the 

 post molds in shape. The trench and its relationship to the molds is 

 shown in plate 21, b. The method of construction of the base of the 

 walls is illustrated in plate 21, a. Here the vertical post molds go 

 down past a horizontal mold which was made by the decay of 

 horizontal logs laid against the vertical posts at the bottom of the 

 trench. The logs were originally held in place in part by the flat 

 stones chinked in between them and the trench walls. This method 

 of construction seemed to be characteristic of the larger structures at 

 this site. 



Almost at the beginning of the excavation of the south side of 

 the mound a row of flat stones set on edge was discovered. These 

 were designated as Feature No. 1 on the plat, and are shown in plate 

 20. These stones, which were 5 feet apart, were in very good aline- 

 ment and, while they were all on the same level, yet their depth 

 below the surface of the mound varied from 10 to 20 inches, due to 



