TT.S.(re6logi<caZ< Survey. 



JPlctte X. 



Profile and Section between the Blackfoot and the JPortneuf, through Station JSXK , 



a.Portneuf-Blackfoot Basin . 2>.P7iocene conglomerates, etc . c, Pliocene marls and limestones. d.Jurc&sic lime si ones and. sand.sfones. e .Eruptive —Sasali } etc. 



Section across the Hoss Fork- JJincoln and Blackfoot Watershed 



