U S. GEOLOGICAL SURVEr 



MONOGRAPH XXVII PLATE XIX 



COAL SEAMS OF THE DENVER BASIN 



Figures A-B LOUISVILLE FIELD. Figure D BAKER FIELD. 



Figure C DAVIDSON FIELD. Figures E-M ERIE FIELD 



Figures N-0 SCRA.NTON FIELD. 



Scale 



°ml fil l ? -t=? 



COAL BONE SLATE SANDSTONE 



