Education Department Bulletin 



Published fortnightlj by the University of the State of New York 



Entered as second-class matter June 34, igoS, at the Post Ofi9ce at Albany, II. Y. 

 under the act of Jtily 16, 1804 



No. 519 



ALBANY, N. Y. 



May 15, 1912 



New York State Museum 



John M. Clarke, Director 



Museum Bulletin i6o 



THE GLACIAL WATERS 



IN THE 



BLACK AND MOHAWK VALLEYS 



BY 



HERMAN L. FAIRCHILD 



PAGE 



Introduction: outline of glacial 



history 5 



Black valley glacial waters 8 



Physiography 8 



Outline of lake histoiy 10 



First stage: Mohawk waters; 



Herkimer lake 10 



Second stage: Forestport lake; 



Remsen outlet 1 1 



Third stage: Port Ley den lake ; 



Boonville outlet 13 



Fourth stage: Glenfield lake; 

 Copenhagen-Champion out- 

 let 16 



Fifth stage: Lake Iroquois 17 



Pre-Wisconsin topography 17 



PAGE 



Mohawk valley glacial waters. ... 19 

 First stage: early Adirondack 



drainage 19 



Second stage: Herkimer lake. . . 22 



Third stage: Schoharie lake. ... 26 



Fourth stage: Amsterdam lake. 29 



Fifth stage: Lake Albany 31 



Tributary lakes 33 



Rock barrier at Little Falls .... 36 



Divide at Rome 38 



Summary of Mohawk drainage 



history 39 



Correlation of Ontarian and 



Hudsonian Ice Lobes 40 



Bibliography 43 



Index 45 



ALBANY 



UNIVERSITY OF THE STATE OF NEW' 



Mior-Si 1-1500 



