Q 

 11 



N82X 

 NH 



No. 195 



York State Museum Bulletin 



J second-class matter November 27, 1915, at the Post Office at Albany, N. Y., 

 under the act of August 24, 1912 



lished monthly by The University of the State of New York 



ALBANY, N. Y. 



March j[, 191 7 



The University of the State of New York 

 New York State Museum 



John M. Clarke, Director 



POSTGLACIAL FEATURES OF THE UPPER 

 HUDSON VALLEY 



BY 



H. L. FAIRCHILD 



PAGE 



Introduction 5 



Glacial drainage 6 



Delta sand plains 7 



vSummit shore lines 8 



Hudson-Champlain divide 10 



Iromohawk distributaries 11 



Effect of land tilting 13 



PAGE 



Round lake:, an ice-block kettle ... 14 



Origin of Saratoga lake 15 



Origin of Ballston lake 16 



Absence of marine fossils 16 



Bibliography 19 



Index 21 



ZA-Z\\\ 



M93r-Mri7-i500 



ALBANY 



THE UNIVERSITY OF THE STATE OF NEW YORK 



1917 



