U    S    GEOLOGICAL   SURVEY 
BULLETIN    NO  341         PL  IX 
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E  O  E  N  D  VMyA  Belt*   »*'  cosl 
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MAP  OF  THE  GLENROCK  COAL  FIELD,  WYOMING 
By  E.  Weslcv  Shaw  and  Charles  T.  Luplo 
