﻿N. 
  Y. 
  STATE 
  MUSEUM 
  BULLETIN 
  168 
  

  

  PLATE 
  50 
  

  

  _ 
  Portion 
  of 
  the 
  Niagara 
  Falls 
  (U. 
  S. 
  G. 
  S.) 
  quadrangle, 
  showing 
  the 
  posi- 
  

   tion 
  of 
  the 
  Falls, 
  the 
  long, 
  narrow 
  gorge 
  cut 
  through 
  the 
  very 
  level 
  Ontario 
  

   plain, 
  the 
  position 
  of 
  the 
  Whirlpool 
  and 
  the 
  " 
  Niagara 
  escarpment 
  " 
  at 
  

   Queenston. 
  Scale, 
  about 
  I 
  mile 
  to 
  the 
  inch. 
  

  

  