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  NEW 
  YORK 
  STATE 
  MUSEUM 
  

  

  concretionary 
  structure 
  that 
  is 
  frequently 
  seen 
  in 
  these 
  coarser 
  

   Hamilton 
  deposits. 
  The 
  fossils 
  are 
  rare 
  in 
  these 
  coarser 
  layers. 
  

   About 
  half 
  a 
  mile 
  above 
  Wawarsing 
  just 
  above 
  saw 
  mill 
  are 
  

   coarse 
  sandstones 
  exposed 
  by 
  the 
  side 
  of 
  the 
  highway 
  which 
  

   have 
  a 
  dip 
  of 
  38° 
  N, 
  40° 
  W. 
  They 
  are 
  bluish 
  in 
  color 
  and 
  split 
  

   into 
  rather 
  thin 
  layers. 
  A 
  little 
  farther 
  up 
  the 
  road 
  is 
  a 
  conspic- 
  

   uous 
  ledge 
  of 
  bluish 
  sandstone 
  which 
  splits 
  into 
  flagstones 
  and 
  a 
  

   quarry 
  has 
  recently 
  been 
  opened 
  in 
  this 
  ledge 
  by 
  the 
  side 
  of 
  the 
  

   highway. 
  Ledges 
  of 
  red 
  shale 
  and 
  sandstone 
  cross 
  the 
  highway 
  

   opposite 
  the 
  house 
  of 
  Mr 
  Hillsdale, 
  two 
  miles 
  above 
  Wawarsing, 
  

   about 
  at 
  the 
  locality 
  where 
  the 
  base 
  of 
  the 
  Catskill 
  is 
  repre- 
  

   sented 
  on 
  the 
  Geologic 
  map 
  of 
  New 
  York. 
  Several 
  years 
  ago 
  a 
  

   well 
  was 
  drilled 
  in 
  Wawarsing 
  to 
  the 
  depth 
  of 
  1776 
  feet, 
  the 
  

   lower 
  part 
  of 
  which 
  is 
  reported 
  to 
  have 
  been 
  in 
  limestones. 
  

  

  The 
  lower 
  falls 
  of 
  Rondout 
  creek 
  in 
  Napanoch 
  are 
  composed 
  of 
  

   the 
  fine 
  blue 
  shales 
  of 
  the 
  Hamilton 
  formation 
  which 
  also 
  appear 
  

   along 
  the 
  highway 
  toward 
  Ellenville. 
  These 
  shales 
  contain 
  

   some 
  fossils 
  though 
  neither 
  species 
  nor 
  specimens 
  are 
  abundant. 
  

   On 
  the 
  eastern 
  side 
  of 
  Rondout 
  creek 
  just 
  below 
  Honk 
  falls, 
  

   which 
  are 
  not 
  far 
  above 
  Napanoch, 
  are 
  blue 
  sandstones 
  which 
  

   split 
  into 
  rather 
  even 
  flaggy 
  layers. 
  The 
  dip 
  is 
  from 
  40° 
  to 
  42° 
  

   N, 
  20° 
  W, 
  while 
  on 
  the 
  western 
  side 
  of 
  the 
  creek 
  it 
  is 
  not 
  much 
  

   more 
  than 
  30°. 
  The 
  cliff 
  on 
  the 
  western 
  side 
  is 
  perhaps 
  100 
  feet 
  

   high, 
  in 
  which 
  are 
  some 
  massive 
  sandstone 
  strata 
  four 
  feet 
  or 
  

   more 
  in 
  thickness, 
  alternating 
  with 
  thinner 
  layers. 
  No 
  fossils 
  

   were 
  found 
  at 
  the 
  falls 
  though 
  the 
  rocks 
  are 
  quite 
  blue 
  and 
  in 
  

   lithologic 
  characters 
  closely 
  resemble 
  the 
  sandstones 
  of 
  the 
  

   Hamilton 
  formation. 
  Not 
  more 
  than 
  two 
  miles 
  above 
  Napanoch 
  

   on 
  the 
  eastern 
  side 
  of 
  the 
  creek 
  the 
  dip 
  has 
  decreased 
  to 
  about 
  

   12°. 
  The 
  first 
  red 
  shale 
  seen 
  in 
  place 
  occurs 
  on 
  this 
  side 
  of 
  the 
  

   creek 
  between 
  the 
  two 
  bridges 
  some 
  distance 
  above 
  Honk 
  falls. 
  

   Along 
  the 
  valley 
  road 
  from 
  Kerhonkson 
  to 
  Ellenville 
  there 
  is 
  a 
  

   considerable 
  amount 
  of 
  sand 
  which 
  also 
  extends 
  up 
  the 
  branches 
  

   for 
  some 
  distance, 
  as 
  in 
  the 
  Rondout 
  valley 
  for 
  two 
  miles 
  above 
  

   Napanoch 
  the 
  roads 
  on 
  both 
  sides 
  of 
  the 
  creek 
  are 
  very 
  sandy. 
  

  

  