SMITHSONIAN EXPLORATIONS, IO,32 



15 



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1 •-:,:,. 



rfS 





Fig. 15. — View of Schoharie Valley, looking north toward North Blenheim, 

 from a point about 1 mile north of Mine Kill. 



Fig. i(j. — Quarry in Stevens Mountain, showing character of Devonian 

 sandstone. From this quarry came most of the rock in Schoharie Reservoir 

 dam. 



Fig. 17. — Devasego Falls, Devonian sandstones. 



