Chert Type Index
© 2003 by the Center For Social Research, Parkland College
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ATTICA
BLANDING
BURLINGTON
COBDEN
DEGONIA
DONGOLA
DOVER
ELWOOD - JOLIET
GLACIAL TILL
HARMILDA
KAOLIN
MILL CREEK
MOLINE
OBSIDIAN
ONEOTA
PLATTEVILLE - GALENA
SHAKOPEE
ST. LOUIS
WYANDOTTE
C
reated:
10/01/02 03:00:01
R
evised:
05/04/2020 17:20:02
For thoughts, comments, or questions contact:
Lenville J. Stelle