Prdc. RcicH. Acad. Science 



Vol. 5, Pl. VI. 



LAKE IROQUOIS 



I milt 



C 



3EN/LE 

 LAKE 

 IROQUOIS 



Map C. Closing phase of the Lake Iroquois stage, showing the extent of 

 sedimentation and wave-work accompHshed in tliat long-Hved water- 

 body, yet their faihire to fill the central section of the Irondequoit de- 

 pression. The ice front, withdrawing toward Montreal, presently un- 

 blocks lower escape north of the Adirondacks and extinguishes Iroquois. 



