﻿t64 
  new 
  yokk 
  state 
  museum 
  

  

  Figure 
  30 
  Diagram 
  showing 
  outline 
  of 
  the 
  typical 
  Y-shaped 
  

   delta. 
  The 
  type 
  toward 
  which 
  the 
  deltas 
  forming 
  

   in 
  the 
  present 
  lakes 
  are 
  tending. 
  The 
  mainland 
  

   is 
  cross-hatched 
  while 
  the 
  delta 
  is 
  left 
  white. 
  

  

  MAPS 
  

  

  1 
  Map 
  showing 
  the 
  areal 
  extent 
  of 
  glacial 
  lakes 
  West 
  Danby 
  and 
  

  

  Brookton 
  and 
  the 
  incipient 
  stage 
  of 
  glacial 
  lake 
  Watkins. 
  

  

  2 
  Map 
  showing 
  the 
  maximum 
  levels 
  of 
  the 
  local 
  glacial 
  lakes- 
  

  

  occupying 
  the 
  present 
  Finger-lake 
  valleys. 
  

  

  3 
  Map 
  showing 
  the 
  areal 
  extent 
  of 
  glacial 
  lake 
  Newberry. 
  

  

  