U.S. GEOLOGICAL SURVEY. 



MONOGRAPH XXXII, PART II, PL. X 



MONTANA 



"wyomTtTg 



"050 BOUNDARY 

 >E!Tectric*'Pe-a]<~ 



~"*r-i 45 



Nebb 



GEOLOGICAL MAP 



OF 



GALLATIN RANGE , YELLOWSTONE NATIONAL PARK. 



A.Hocn.t Co. Lirh. Baltimore, 



PLEISTOCENE 



LEGEND 



CRETACEOUS JURATRIAS 



CARBONIFEROUS DEVONIAN SILURIAN 



Phs 



Pal 



Pgd 



Km 



Kc 





Jt 







Cm 



Sj 



Hoi Spiings ATravium Glacial Montana Colorado Dakota EUis Teton Quadrant Madison Threeforks Jefferson 



formation drift. formation, formation, formation, formation, formation, formation, limestone, limestone. limestone. 



CAMBRIAN 



NEOCENE 



EOCENE 



ARCHEAN 



H 





Cf 



Nbst 



Nrh 



i 



Nebb 



dp 





anp 





tf|n 





*>*■ 



Gallatin Flathead Basalt. Khyolite. Electric Kersantite. Earlyoasio Early acid Dacife- Andesite- Granite and Faults, 



limestone, formation.. intrusives. breccia. breccia, porphyry. porphyry. gneiss. 



Scale 125000 



t i y i ? t * ? * - r ' M "- ES - 



CONTOUR INTERVAL tOO FEET. 



