STARR — SUMMARY OF THE ARCHAEOLOGY OF IOWA. 



59 



Allamakee County — Continued. 



is here an excellent circular enclosure 2^'. The circle consists of 

 three parallel ditches and two intermediate earthen walls. The 

 inside ditch was originally probably 5 or 6 feet deep and 12 feet 

 wide; the inner yall is the same width; the middle ditch is 4 

 feet deep and about the same width as the wall. The circular 

 wall is broken on the side Avhere it strikes the south margin of the 

 bluff overlooking the slough. The circumference of the circle 

 exclusive of the break is 996 feet; the break extends along the 

 bluff 225 feet. At the south-east an embankment 10 or 12 feet 

 wide and from 3 to 5 feet high runs down the crest of a narrow 



spur about 150 feet, gradually tapering to a point. Three 



"furnaces" of stone are here. One was in a small mound with- 



Cjclopa?dia. Copyright, 18fO, by D. Applelon 4 Co. 



Fig. I. 



in the enclosure; the mound was 24 feet in diameter. In it were 

 two walls of stone, flat sandstones roughly laid up and gradually 

 drawn in near the top until one layer would cover the opening 

 left in the top near that end. The walls were about 13 feet long, 

 3 feet high, and 3 feet apart. The stones show signs of fire. 



