﻿KEPOKT 
  OF 
  THE 
  DIRECTOR 
  r87 
  

  

  sudden 
  falling 
  of 
  its 
  waters 
  to 
  the 
  level 
  of 
  tbe 
  White 
  Church 
  over- 
  

   flow, 
  previously 
  occupied 
  by 
  the 
  local 
  lake 
  Brookton, 
  which 
  marks 
  

   the 
  beginning 
  of 
  a 
  new 
  episode 
  in 
  the 
  ice 
  dammed 
  waters, 
  namely, 
  

   the 
  beginning 
  of 
  glacial 
  lake 
  Ithaca. 
  The 
  records 
  left 
  by 
  the 
  West 
  

   Danby, 
  as 
  well 
  as 
  the 
  Brookton 
  stage, 
  point 
  apparently 
  to 
  a 
  very 
  

   brief 
  lake 
  existence. 
  

  

  Brookton 
  lake 
  stage 
  

  

  Markings 
  of 
  lake 
  level 
  : 
  

  

  Six 
  Mile 
  creek. 
  Brookton 
  delta, 
  1020 
  feet 
  

  

  Slight 
  and 
  scattering 
  gravel 
  deposits 
  are 
  found 
  at 
  about 
  the 
  

  

  same 
  elevation 
  to 
  the 
  northwest 
  of 
  Besemer 
  depot 
  on 
  both 
  

  

  sides 
  of 
  the 
  valley. 
  

  

  Evidence 
  and 
  history 
  of 
  lake 
  : 
  

  

  The 
  outlet 
  to 
  the 
  Brookton 
  stage 
  was 
  by 
  White 
  Church 
  with 
  

   an 
  elevation 
  of 
  975 
  feet. 
  

  

  This 
  was 
  the 
  beginning 
  of 
  the 
  Ithaca 
  stage, 
  which 
  was 
  formed 
  

   by 
  the 
  coalescing 
  of 
  the 
  waters 
  of 
  the 
  Danby 
  lake 
  with 
  those 
  in 
  the 
  

   Six 
  Mile 
  creek 
  valley, 
  after 
  the 
  ice 
  had 
  retreated 
  to 
  the 
  region 
  

   round 
  about 
  Ithaca- 
  It 
  was 
  a 
  local 
  lake 
  occupying 
  the 
  Six 
  Mile 
  

   creek 
  valley 
  with 
  its 
  overflow 
  by 
  White 
  church, 
  and 
  was 
  analogous 
  

   to 
  and 
  contemporaneous 
  with 
  the 
  local 
  Danby 
  lake 
  then 
  occupying 
  

   the 
  southern 
  part 
  of 
  the 
  Cayuga 
  Inlet 
  valley. 
  It 
  was 
  a 
  lake 
  

   separate 
  from 
  the 
  Ithaca 
  waters, 
  and 
  was 
  in 
  existence 
  for 
  a 
  length 
  of 
  

   time 
  sufficient 
  for 
  the 
  ice 
  to 
  withdraw 
  from 
  the 
  divide 
  at 
  White 
  

   church, 
  past 
  Brookton 
  to 
  Ithaca. 
  The 
  evidence 
  which 
  marks 
  the 
  

   life 
  of 
  such 
  a 
  local 
  body 
  of 
  water 
  is 
  essentially 
  the 
  same 
  as 
  that 
  

   bearing 
  testimony 
  to 
  the 
  existence 
  of 
  the 
  Danby 
  lake. 
  

  

  Excluding 
  markings 
  left 
  to 
  record 
  such 
  local 
  lakes, 
  which 
  might 
  

   very 
  well 
  be 
  erased 
  after 
  so 
  very 
  brief 
  a 
  history, 
  due 
  entirely 
  to 
  

   rapid 
  retreat 
  in 
  the 
  ice, 
  we 
  could 
  be 
  assured 
  of 
  the 
  existence 
  of 
  

   these 
  lakes 
  upon 
  comparative 
  theoretical 
  grounds. 
  No 
  streams 
  

   are 
  found 
  tributary 
  to 
  Six 
  Mile 
  creek, 
  of 
  sufficient 
  size 
  to 
  be 
  digni- 
  

   fied 
  by 
  the 
  name 
  creek, 
  hence, 
  it 
  would 
  be 
  impossible 
  to 
  find 
  records 
  

   here 
  in 
  the 
  form 
  of 
  deltas. 
  However, 
  abundant 
  evidence 
  exists 
  in 
  

   the 
  way 
  of 
  gravels 
  found 
  on 
  the 
  streamlets 
  debouching 
  into 
  Six 
  

   Mile 
  creek 
  at 
  an 
  elevation 
  of 
  from 
  985 
  to 
  1030 
  feet. 
  Two 
  such 
  

  

  