U S GEOLOGICAL SURVEY. 



MONOGRAPH XXXII.PART II, PL. XXXII, 



DRUID PEAK THE THUNDERER 



"Nebs 



INDEX PEAK 

 Nebs 



Ne~bb ' 



POLLUX PEAK 

 -Jlebs 



HURRICANE MESA 



CLARK FORK 



GEOLOGICAL CROSS SECTIONS OF THE VOLCANO OF CEANDALL BASIN, ABSAROKA RANGE 



LEGEND 



CAMBRIAN NEOCENE EOCENE ARCHEAN 



CARBONIFEROUS DEVONIAN 



SILURIAN 



S J 



\hW\ g§ 



bi>ebb 



/Rgn 



ScaleoP Miles 



in.l-Co.Ltlh.Bnll 



