Outcrop belt of the Niagaran formation in the Great Lakes region.

Call Number: 
3310 d5.1-1
Author: 
J Harlen Bretz
Publisher: 
Illinois State Geological Survey
Date: 
1939
Map Description: 
1 map : linen ; 21 x 34 cm
Notes: 
Original linen for figure 64, Illinois State Geological Survey Bulletin 65, Part 1;
Keywords: 
Niagaran series - Great Lakes area
Scale: 
ca. 1:4,200,000
Added Entries: 
Illinois State Geological Survey Bulletin 65

 

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