."/. JT. GkOLOaiCAl. SURVEY. 



GrwdWai 



<LX 



Grand WashE 





.{■; ii 



.1 \ 1. i I .> 1 I. \ I I II 



A// 'llvwhdl 



...llllllll'IIIIHIII,.... 



imiliiUi]ini»iniiuu»unii<unin"" ii '» ,i,i,, "« , «- 



fhrricanel 









8 n i: a \ w i i's P L -i r /: .i u. 



-t^-tt. 



Kferi KdbabFkdl I tf<7 



f /:,... '\-v ...,.-■ Trr- :— rt- u. ■ „ !■ . . --■.-. 



/ .s k iliA'T c /. .; / /•; .i r. 



Kanobl ... n 





/c-i .v.i b p /^-t ra -i r 



• 







. 



' '{a:bjbMni. 



**.*••- 



Devonian Silurian er.J .-'rchcccn unconformable * 



P L .i '/•/; .1 c . 



ftret hcrrcl 



Echo Cliffs. 





T_J LLi.^ I - , *T~-T~5a A^ 



~h , ■vi-v,-\t-^ , .; ;<■■ v. :.< \. 7rrrr--:7~r-'->> v > " \- w,\ , ■ ,t -~ ■ 





Volcanic 



Cretaceous 



Jura 



- < ,-<•■■ - 



TTTnr 



I -|W V, 



Trias 



Permian 



Carboniforous 



3/ .1 R 7 J f , /•; CAN ON 1' LAT F O H M . 



-_ -—-•-'- ■'■'■— r- Horizontal and 1'crhcal Scale 



r. i_i_'_i i 



I . 



SECTION' FROM EAST TO WEST ACROSS THE ('.RAND CAXOX DISTRICT. 





