U. S. GEOLOGICAL SURl'EY. 
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KEY TO THE PANORAMA FR( 
E. ilount Emma. 
I. IiJiiei' Gor^e. 
1*. Powell's Plateau 
T. Mount Tniiiibnll 
1. Cherty limestoin*. 
2. Upper Aubrey limestone. 
;{. rroaa beibled saud.stonc. 
