﻿FIFTH 
  REPORT 
  OF 
  THE 
  DIRECTOR 
  IQoS 
  163 
  

  

  arc 
  also 
  found 
  at 
  Crab 
  island, 
  Bluff 
  point, 
  Plattsburg, 
  and 
  with- 
  

   out 
  doubt 
  may 
  be 
  found 
  elsewhere 
  in 
  the 
  present 
  lake 
  basin. 
  

   The 
  evidence 
  from 
  Valcour 
  island, 
  however, 
  is 
  in 
  itself 
  sufficient 
  

   to 
  demonstrate 
  the 
  presence 
  of 
  a 
  preglacial 
  lake 
  which 
  for 
  many 
  

   thousands 
  of 
  years 
  remained 
  at 
  a 
  stable 
  level 
  very 
  close 
  to 
  that 
  

   at 
  present 
  attained 
  by 
  Lake 
  Champlain. 
  For 
  this 
  ancient 
  lake 
  the 
  

   name 
  Lake 
  Valcour 
  is 
  proposed. 
  

  

  