﻿268 
  NEW 
  YORK 
  STATE 
  MUSEUM 
  

  

  shale 
  some 
  220 
  feet 
  above 
  the 
  Catskill 
  creek 
  level 
  in 
  Oakhill. 
  

   This 
  exposure 
  is 
  apparently 
  about 
  100 
  feet 
  above 
  the 
  base 
  of 
  the 
  

   Oneonta, 
  but 
  the 
  rocks 
  are 
  covered 
  by 
  drift 
  along 
  the 
  road 
  

   down 
  the 
  western 
  side 
  of 
  the 
  hill. 
  

  

  LVII 
  A 
  1 
  At 
  Oakhill 
  Kelsey's 
  creek 
  flows 
  into 
  the 
  Catskill 
  

   from 
  the 
  north. 
  In 
  the 
  lower 
  part 
  of 
  the 
  glen 
  just 
  above 
  

   the, 
  street 
  bridge 
  and 
  15 
  feet 
  above 
  the 
  level 
  of 
  Catskill 
  are 
  

   blue, 
  argillaceous 
  shales 
  which 
  contain 
  specimens 
  of 
  Estheria 
  sp. 
  

   apparently 
  the 
  same 
  as 
  those 
  found 
  at 
  the 
  foot 
  of 
  Felter's 
  falls 
  

   in 
  Kensselaerville 
  township. 
  Higher 
  in 
  the 
  glen 
  are 
  green 
  argil- 
  

   laceous 
  shales, 
  which 
  belong 
  in 
  the 
  Sherburne 
  formation 
  that 
  

   extends 
  up 
  this 
  creek 
  for 
  a 
  distance, 
  and 
  greenish 
  sandstone 
  with 
  

   some 
  that 
  is 
  dark 
  gray 
  in 
  color. 
  Loose 
  pieces 
  of 
  red 
  sandstone 
  

   were 
  also 
  noticed 
  in 
  the 
  upper 
  part 
  of 
  the 
  glen. 
  It 
  is 
  reported 
  by 
  

   some 
  of 
  the 
  residents 
  of 
  Oakhill 
  that 
  natural 
  gas 
  comes 
  to 
  the 
  

   surface 
  just 
  above 
  the 
  street 
  bridge 
  in 
  Kelsey's 
  creek. 
  Bed 
  shale 
  

   and 
  sandstone 
  show 
  on 
  the 
  highway 
  three 
  fourths 
  of 
  a 
  mile 
  north- 
  

   west 
  of 
  Oakhill 
  not 
  far 
  below 
  the 
  first 
  cross 
  road 
  across 
  the 
  

   creek, 
  and 
  about 
  225 
  feet 
  above 
  the 
  level 
  of 
  the 
  Catskill 
  in 
  

   Oakhill. 
  On 
  the 
  cross 
  road 
  is 
  an 
  outcrop 
  of 
  red 
  shale 
  with 
  some 
  

   that 
  is 
  green 
  in 
  color 
  115 
  feet 
  higher 
  than 
  the 
  creek 
  at 
  Brown's 
  

   mill. 
  Bed 
  sandstone 
  forms 
  a 
  ledge 
  on 
  the 
  western 
  bank 
  of 
  Cats- 
  

   kill 
  creek 
  rather 
  more 
  than 
  three 
  fourths 
  of 
  a 
  mile 
  above 
  Brown's 
  

   mill 
  and 
  not 
  far 
  below 
  Cooksburg. 
  This 
  ledge 
  according 
  to 
  the 
  

   contour 
  lines 
  on 
  the 
  " 
  Durham 
  sheet 
  " 
  of 
  the 
  United 
  States 
  topo- 
  

   graphic 
  map 
  has 
  an 
  altitude 
  of 
  about 
  740 
  feet 
  above 
  sea 
  level. 
  

   From 
  this 
  locality 
  the 
  base 
  of 
  the 
  red 
  rocks 
  were 
  followed 
  south- 
  

   easterly 
  along 
  the 
  western 
  side 
  of 
  Catskill 
  creek. 
  In 
  the 
  brook 
  

   below 
  Durham 
  village 
  the 
  lowest 
  red 
  rocks 
  seen 
  are 
  shales 
  which 
  

   occur 
  at 
  an 
  elevation 
  of 
  720 
  feet 
  A. 
  T. 
  Below 
  this 
  outcrop 
  the 
  

   rocks 
  are 
  mostly 
  covered 
  along 
  this 
  brook 
  and 
  this 
  shale 
  may 
  not 
  

   be 
  at 
  the 
  base 
  of 
  the 
  reds. 
  In 
  a 
  small 
  brook 
  entering 
  the 
  

   Catskill 
  from 
  the 
  west 
  at 
  Eagle 
  bridge 
  and 
  mill, 
  one 
  mile 
  below 
  

   Oakhill 
  are 
  red 
  shales 
  only 
  30 
  feet 
  above 
  the 
  level 
  of 
  the 
  creek 
  

   and 
  below 
  them 
  along 
  the 
  brook 
  and 
  on 
  the 
  bank 
  of 
  the 
  creek 
  are 
  

   bluish 
  and 
  olive 
  argillaceous 
  shales 
  which 
  are 
  probably 
  at 
  the 
  

  

  