80 



ways over the trench, and about one hundred and fifty 

 feet in front of the causeway are five low mounds upon 

 which, under the covering of sod, evidence of ancient 

 fires were found. Inside the trench and embankment, 

 near the western side, is a large mound, about fifteen feet 

 high, with a flat top which is about seventy by ninety 

 feet in extent. In all directions, from the large mound 

 to the embankment, are numerous low circular mounds, 

 averaging about forty feet in diameter. The central por- 



FiG. 7. 



tions of these mounds are depressed, indicating the sites 

 of the houses of the people who lived inside of the earth- 

 work. 



The large mound was opened by cutting a trench five 

 feet wide on the eastern side, and gradually widening it 

 to fourteen feet, which width was retained well beyond 

 the centre. This trench was carried to a depth of eigh- 

 teen feet, or four feet below the original surface upon 

 which the mound was erected. At the original surface 

 evidence of an extensive fire was noticed. Among the 

 charcoal and ashes were numerous fragments of bones of 

 animals. A few feet above this ash bed a piece of cedar 



