U    S    GEOLOGICAL   SURVEY 
BULLETIN    NO  341         PL 
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«p  m&  I 
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RECONNAISSANCE  MAP  OF  THE  DOUGLAS  CREEK  DISTRICT,  LOWER 
WHITE  RIVER  COAL  FIELD,  SOUTH  OF  THE  BASE  LINE,  COLORADO 
By  Hoyt  S.  Gale,  J.  A.  Davis,  and  C.  W.  Stoops 
