16 



ILLINOIS STATE GEOLOGICAL SURVEY CIRCULAR 480 



.tripped — 

 lchester(No.2)Cool M. 



»ed — 

 .4) Cool M. 



I outcrop 



Shaft, slope, or drift mine 

 (abandoned) 



s^\ Pit number — Peabody C.C. 

 ^ Northern Mine 



KILOMETERS 



Fig. 2 - Mazon Creek area, famous for its compression- impression plant flora. (Map 

 prepared by W. H. Smith, Illinois State Geological Survey.) 



