﻿Report 
  of 
  the 
  State 
  Geologist. 
  579 
  

  

  of 
  foot 
  hills 
  of 
  the 
  Catskills; 
  second, 
  the 
  stone 
  which 
  is 
  

   produced 
  higher 
  up, 
  both 
  by 
  actual 
  vertical 
  measurement, 
  and 
  

   also 
  in 
  the 
  geo'ogical 
  s 
  'ale. 
  At 
  lea^t 
  the 
  blue 
  sione 
  produced 
  

   from 
  the 
  lower 
  range 
  belongs 
  probably 
  to 
  the 
  Hamilton 
  group 
  

   of 
  the 
  Devonian. 
  These 
  quarries 
  are 
  located 
  at 
  an 
  altitude 
  

   between 
  f»00 
  and 
  700 
  feet 
  above 
  tide 
  water, 
  while 
  it 
  is 
  probable 
  

   that 
  the 
  quarries 
  farther 
  up 
  the 
  Ulster 
  and 
  Delaware 
  railroad, 
  or 
  

   at 
  a 
  verticil 
  altitude 
  of 
  from 
  700 
  to 
  2000 
  feet 
  and 
  upwards 
  belong 
  

   to 
  the 
  Cat-skill 
  group 
  of 
  the 
  Devonian. 
  Quarries 
  are 
  worked 
  at 
  

   Big 
  Indian 
  on 
  the 
  Ulster 
  and 
  Delaware 
  railroad. 
  This 
  station 
  is 
  

   about 
  1*200 
  feet 
  A. 
  T., 
  and 
  quarries 
  are 
  worked 
  on 
  the 
  hillside 
  

   100 
  to 
  500 
  feet 
  above 
  this 
  point. 
  

  

  The 
  following 
  elevations 
  of 
  points 
  on 
  the 
  Ulster 
  and 
  Delaware 
  

   railroad 
  are 
  taken 
  from 
  Van 
  Loon's 
  Catskill 
  Mountain 
  Guide. 
  

   These 
  stations 
  are 
  the 
  principal 
  points 
  of 
  concentration 
  of 
  the 
  

   blue 
  stone 
  gathered 
  from 
  the 
  quarries 
  in 
  the 
  vicinity 
  of 
  the 
  

   railroad. 
  The 
  quarries 
  are 
  distant 
  from 
  the 
  railroad 
  from 
  a 
  

   quarter 
  of 
  a 
  mile 
  to 
  five 
  miles. 
  West 
  Hurley 
  is 
  the 
  first 
  point 
  

   west 
  of 
  Kingston 
  where 
  blue 
  stone 
  is 
  quarried. 
  This 
  station 
  is 
  

   530 
  feet 
  A. 
  T., 
  and 
  the 
  tributary 
  quarries, 
  without 
  doubt, 
  belong 
  

   to 
  the 
  Hamilton 
  formation. 
  Brodhead's 
  Bridge, 
  eight 
  miles 
  west 
  

   of 
  West 
  Hurl 
  y, 
  has 
  an 
  elevation 
  500 
  feet 
  A. 
  T. 
  Boiceville 
  is 
  6 
  io 
  feet 
  

   A. 
  T., 
  and 
  Mt. 
  Pleasant 
  is 
  700 
  feet. 
  From 
  these 
  la* 
  t 
  two 
  stations 
  

   the 
  pink 
  and 
  gray 
  sandstones 
  are 
  shipped, 
  together 
  with 
  the 
  blue 
  

   stone 
  ; 
  it 
  is, 
  therefore, 
  probable 
  that 
  the 
  stone 
  comes 
  from 
  two 
  

   distinct 
  geological 
  horizons. 
  Phoenicia 
  has 
  an 
  elevation 
  of 
  798 
  

   feet; 
  Shandaken, 
  1060 
  feet; 
  Allaben, 
  990 
  feet; 
  Big 
  Indian, 
  1209 
  

   feet, 
  A. 
  T. 
  From 
  Phoenicia 
  nothing 
  but 
  the 
  pink 
  and 
  gray 
  stone 
  

   is 
  shipped. 
  The 
  quarries 
  here 
  are 
  at 
  varying 
  altitudes 
  above 
  the 
  

   station. 
  Quarries 
  just 
  south 
  of 
  the 
  track 
  are 
  from 
  300 
  to 
  500 
  

   feet 
  higher 
  than 
  the 
  station. 
  Adding 
  this 
  to 
  the 
  height 
  of 
  the 
  

   station, 
  A. 
  T., 
  we 
  find 
  the 
  altitude 
  of 
  the 
  stone 
  produced 
  here 
  to 
  

   be 
  from 
  1100 
  feet 
  to 
  1300 
  feet 
  A. 
  T. 
  The 
  altitudes 
  of 
  the 
  stations 
  

   are 
  from 
  railroad 
  levels, 
  the 
  altitude 
  of 
  the 
  quarries 
  above 
  the 
  

   station 
  are 
  estimated. 
  

  

  The 
  principal 
  points 
  of 
  difference 
  between 
  the 
  typical 
  North 
  

   river 
  blue 
  stone 
  and 
  the 
  stone 
  quarried 
  above 
  Boiceville 
  and 
  Mt. 
  

   Pleasant 
  are 
  about 
  as 
  follows 
  : 
  first, 
  as 
  to 
  color 
  the 
  JSTorth 
  

   river 
  stone 
  is 
  a 
  dark 
  blaish-gray, 
  the 
  color 
  of 
  the 
  Catskill 
  stjne 
  

  

  