530 ARCHEOLOGICAL INVESTIGATIONS—IL [BTH. ANN. 44 
with but little of the solid blue nucleus on the other side; of others 
showing very little of the “ white chalk,” as it is locally called, but 
with several square inches of the blue; and of flakes 2 to 4 inches 
long by half as wide, of the solid blue interior. From these sizes 
they range downward to the tiny chips which are the product of the 
final secondary finishing touches. 
For these reasons it is extremely improbable that any particular 
quarry or spot exists where a special effort was made to shape the 
disks and nothing else. 
The “mound” at the mouth of Indian Creek, mentioned in the 
Indiana Geological Survey Report of 1878, is a natural elevation, 
utilized as a village site. The “shell heap” near it now shows a 
thickness on the face of the falling bank of nearly 2 feet and its top 
is about the same distance below the present surface of the ground. 
It is not a “ mound,” in the sense of being intentionally built up, but 
a “kitchen midden,” resulting from shells thrown here after the 
Indians had eaten the mussels which they contained. 
When this site was occupied by its dusky inhabitants the creel 
made a long detour through the present slough, putting the village 
on the upper side of the mouth instead of on the lower side as it 
now appears to be. This is in accordance with the position of all 
aboriginal village sites which were established in such situations; 
they are never on the lower side of the creek unless at some distance 
from its point of junction with the main stream. 
A great amount of flint was worked up on this site; indications 
are plentiful over several acres. 
Near Elkton and Trenton, Todd County, Ky., are quarries and 
workshops of hornstone practically identical with that of Harrison 
County, Ind.; and it is reported that large disks of similar material 
are found “at the mouth of Flat Fork, near Sherbourne, between 
Flemingsburg and Mount Sterling, Ky.,” which is on the other side of 
the geological divide. 
Furnt 1x Union Country, Itt. 
To the archeologist, Union County, Ill., is classic ground by 
reason of having within its borders three separate deposits of flint 
from which the Indians drew their supplies, each of them belonging 
to a distinct geological formation. The term “flint” is used here 
in its ordinary, well-understood meaning, although one of these de- 
posits is chert, another is hornstone, while the third is partly chalce- 
dony and partly novaculite. 
The famous chert quarries at Mill Creek which furnished such an 
immense amount of material for large hoes and spades have been 
