| 1540 flabove tide 
Geological Survey of Obi, 
MAP OF 
==] LOGAN & CHAMPAIGN 
COUNTIES, 
BY 
Prandin ©. Hill. 
i 
! 
H 
Bellefontaine 
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| 
( Miami River 
(Mi 
= Huron Shale 
~~ Corniferous 
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3 
Clinton 
Cincinnati 
Co. 
UNION 
; 
Kings Creek 
Te 
| 
oO. 
1 
J 
ly 2 
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UNION (Metiaxtcsburs! 
| | 
Texas 
MIAMI 
MApbDiIson Co. 
above tide 
Of « 
5 
SS 
Bawlusville_ 
