﻿GEOLOGY 
  OP 
  WASHINGTON, 
  WARREN 
  COUNTIES, 
  ETC. 
  535 
  

  

  Series 
  2. 
  In 
  the 
  village 
  of 
  Bolton 
  Landing 
  a 
  belt 
  of 
  white 
  

   crystalline 
  limestone 
  is 
  met, 
  and 
  associated 
  with 
  it 
  are 
  quartzose, 
  

   micaceous 
  gneisses 
  and 
  pegmatites) 
  with 
  graphite, 
  such 
  as 
  are 
  

   usually 
  found 
  in 
  the 
  vicinity 
  of 
  this 
  member. 
  One 
  dense 
  green 
  

   rock, 
  that 
  is 
  excessively 
  rusty 
  on 
  exposed 
  surfaces, 
  exhibits 
  under 
  

   the 
  microscope 
  garnet, 
  quartz 
  or 
  scapolite, 
  (the 
  grains 
  are 
  so 
  fine 
  

   that 
  it 
  is 
  difficult 
  to 
  discriminate) 
  pyrrhotite, 
  apparently 
  rusted 
  

   biotite 
  and 
  either 
  graphite 
  or 
  magnetite. 
  This 
  type 
  is 
  not 
  in- 
  

   frequent 
  in 
  the 
  vicinity 
  of 
  the 
  limestones 
  and 
  betrays 
  itself 
  by 
  

   its 
  proneness 
  to 
  rust. 
  

  

  Series 
  3. 
  Dark, 
  basic 
  gabbros 
  were 
  observed 
  in 
  five 
  places 
  in 
  

   all. 
  The 
  largest 
  is 
  just 
  south 
  of 
  the 
  village 
  of 
  Bolton 
  Landing. 
  

   Another 
  lies 
  just 
  north, 
  while 
  three 
  others 
  were 
  in 
  the 
  extreme 
  

   northwest. 
  

  

  Series 
  4. 
  We 
  have 
  met 
  no 
  paleozoic 
  exposures. 
  

  

  Series 
  5. 
  We 
  have 
  met 
  no 
  trap 
  dikes. 
  

  

  Series 
  6. 
  The 
  glacial 
  deposits 
  are 
  widespread 
  over 
  the 
  town. 
  

   The 
  post-glacial 
  terraces 
  on 
  the 
  Hudson 
  are 
  of 
  special 
  interest. 
  

   Two 
  well 
  developed 
  ones 
  were 
  noted 
  along 
  the 
  western 
  central 
  

   border 
  of 
  the 
  town, 
  respectively 
  25 
  and 
  45 
  feet 
  above 
  the 
  river. 
  

   This 
  would 
  be 
  about 
  the 
  720 
  and 
  740 
  foot 
  contours. 
  We 
  have 
  not 
  

   however 
  studied 
  these 
  phenomena 
  with 
  sufficient 
  care 
  to 
  justify 
  

   extended 
  mention 
  of 
  them. 
  

  

  Chester 
  

  

  Topography. 
  Chester 
  lies 
  between 
  the 
  valleys 
  of 
  the 
  Schroon 
  

   lake 
  and 
  river 
  on 
  the 
  east, 
  and 
  the 
  valley 
  of 
  the 
  Hudson 
  on 
  the 
  

   west. 
  In 
  its 
  southern, 
  central 
  portion 
  it 
  contains 
  two 
  rather 
  

   large 
  lakes, 
  Loon 
  and 
  Friends. 
  Over 
  most 
  of 
  the 
  township 
  the 
  

   the 
  elevations 
  are 
  moderate 
  and 
  picturesque 
  affording 
  a 
  diversi- 
  

   fied 
  topography, 
  without 
  any 
  specially 
  marked 
  trend. 
  The 
  

   greatest 
  elevations 
  are 
  just 
  along 
  the 
  northern 
  border. 
  Green 
  

   hill 
  on 
  the 
  northeast 
  reaches 
  2227 
  and 
  Maxham 
  mountain 
  on 
  

   the 
  northwest 
  2461. 
  The 
  western 
  divides 
  of 
  the 
  feeders 
  of 
  Loon 
  

   lake 
  and 
  Friends 
  lake 
  are 
  close 
  to 
  the 
  Hudson, 
  though 
  these 
  

   lakes 
  discharge 
  into 
  the 
  Schroon. 
  This 
  appears 
  to 
  be 
  due 
  to 
  the 
  

  

  