﻿CLASSIFICATION, 
  ETC. 
  OF 
  HAMILTON 
  AND 
  CHEMUNG 
  SERIES 
  121 
  

  

  (A 
  8 
  ) 
  of 
  similar 
  gre.mish 
  sandstone 
  which 
  thickens 
  toward 
  the 
  top, 
  

   while 
  30 
  feet 
  higher 
  is 
  a 
  four-foot 
  ledge 
  (A 
  10 
  ) 
  of 
  thin 
  bedded, 
  

   grayish 
  sandstone 
  which 
  is 
  the 
  highest 
  outcrop 
  examined 
  on 
  the 
  

   hill. 
  

  

  TREAD 
  WELL 
  SECTION 
  

  

  LXVI 
  A 
  

  

  349' 
  

  

  A 
  10 
  Thin 
  bedded 
  grayish 
  sandstone 
  

  

  345' 
  

  

  315' 
  

   310' 
  

  

  268' 
  

  

  255' 
  

  

  165 
  y 
  

  

  35' 
  

  

  25' 
  

  

  0' 
  

  

  r 
  

  

  30' 
  

  

  5' 
  

  

  42' 
  

  

  13' 
  

  

  88' 
  

  

  2' 
  

  

  130' 
  

  

  10' 
  

  

  25' 
  

  

  A 
  9 
  Covered 
  

  

  A 
  8 
  Greenish 
  sandstone 
  

  

  A 
  7 
  Covered 
  

  

  A 
  6 
  Prime 
  quarry. 
  Sandstone 
  and 
  shale 
  

  

  250 
  (?) 
  slightly 
  reddish 
  sandstone 
  

   A 
  5 
  Mostly 
  covered 
  

  

  A 
  4 
  Thin 
  bedded 
  gray 
  sandstone 
  

  

  A 
  3 
  Covered 
  

  

  A 
  2 
  Red 
  sandstone 
  

  

  A 
  1 
  Covered 
  

   Center 
  of 
  Treadwell 
  

  

  