﻿292 
  NEW 
  YORK 
  STATE 
  MUSEUM 
  

  

  On 
  the 
  ridge 
  east 
  of 
  Fawns 
  and 
  the 
  Plaaterskill 
  are 
  fairly 
  

   coarse 
  grained, 
  bluish 
  gray 
  sandstones 
  probably 
  in 
  the 
  Sherburne 
  

   formation. 
  Farther 
  southeast 
  the 
  country 
  is 
  very 
  wild 
  and 
  rough 
  

   having 
  been 
  cleared 
  and 
  now 
  covered 
  by 
  the 
  second 
  growth 
  of 
  

   trees, 
  with 
  here 
  and 
  there 
  a 
  stone 
  quarry 
  but 
  no 
  farming 
  land. 
  

   In 
  fact 
  for 
  many 
  miles 
  along 
  this 
  ridge 
  from 
  the 
  northern 
  part 
  

   of 
  Ulster 
  co. 
  to 
  the 
  southwest 
  the 
  country 
  is 
  nearly 
  a 
  wilder- 
  

   ness. 
  In 
  this 
  region 
  at 
  the 
  four 
  corners 
  on 
  the 
  road 
  from 
  Fawns 
  

   to 
  Saugerties 
  are 
  a 
  number 
  of 
  stone 
  quarries. 
  Just 
  west 
  of 
  the 
  

   corners 
  is 
  an 
  extensive 
  quarry 
  in 
  bluish, 
  massive, 
  somewhat 
  

   banded 
  sandstone 
  with 
  a 
  thickness 
  of 
  six 
  and 
  one 
  half 
  feet. 
  

   Above 
  are 
  eight 
  feet 
  of 
  bluish 
  shales 
  and 
  then 
  five 
  feet 
  of 
  shat- 
  

   tered 
  sandstone. 
  Dip 
  is 
  2^° 
  S, 
  30° 
  W, 
  and 
  there 
  is 
  also 
  a 
  heavy 
  

   dip 
  to 
  the 
  west. 
  No 
  fossils 
  were 
  found 
  in 
  the 
  sandstone 
  or 
  shale 
  

   and 
  this 
  quarry 
  is 
  considered 
  as 
  at 
  about 
  the 
  base 
  of 
  the 
  Sher- 
  

   burne 
  formation. 
  On 
  the 
  road 
  just 
  east 
  of 
  the 
  corners 
  are 
  bluish 
  

   black, 
  arenaceous 
  shales, 
  layers 
  of 
  which 
  contain 
  Spirlfer 
  granu- 
  

   losus 
  (Con.) 
  H. 
  & 
  C. 
  and 
  other 
  fossils, 
  so 
  that 
  these 
  rocks 
  are 
  

   clearly 
  in 
  the 
  Hamilton 
  formation. 
  The 
  line 
  of 
  separation 
  be- 
  

   tween 
  the 
  Sherburne 
  and 
  Hamilton 
  formations 
  at 
  this 
  locality 
  

   is 
  about 
  on 
  the 
  line 
  of 
  the 
  north 
  and 
  south 
  highway. 
  It 
  is 
  only 
  

   about 
  one 
  mile 
  farther 
  east 
  to 
  the 
  eastern 
  face 
  of 
  the 
  line 
  of 
  hills 
  

   which 
  form 
  the 
  western 
  boundary 
  of 
  the 
  Hudson 
  valley. 
  The 
  

   range 
  is 
  broken 
  by 
  streams- 
  and 
  at 
  places 
  rises 
  into 
  points 
  like 
  

   Mt 
  Airy 
  and 
  Mt 
  Marion 
  from 
  500 
  to 
  700 
  feet 
  A. 
  T. 
  To 
  the 
  east 
  

   in 
  the 
  valley 
  is 
  the 
  Onondaga 
  limestone, 
  in 
  the 
  lower 
  part 
  of 
  the 
  

   steep 
  ridge 
  are 
  fine, 
  black 
  Marcellus 
  shales, 
  while 
  the 
  upper 
  part, 
  

   and 
  for 
  some 
  distance 
  westward, 
  belongs 
  in 
  the 
  Hamilton 
  forma- 
  

   tion. 
  In 
  general 
  in 
  all 
  this 
  region 
  there 
  is 
  a 
  heavy 
  westerly 
  dip 
  

   with 
  a 
  lighter 
  one 
  to 
  the 
  south. 
  The 
  rocks 
  consist 
  of 
  alternating 
  

   masses* 
  of 
  massive 
  sandstone 
  and 
  argillaceous 
  or 
  arenaceous 
  

   shales. 
  The 
  sandstones 
  form 
  steep 
  cliffs 
  which 
  are 
  numerous 
  

   and 
  very 
  conspicuous 
  in 
  passing 
  from 
  the 
  east 
  toward 
  the 
  west. 
  

   On 
  account 
  of 
  the 
  heavy 
  westerly 
  dip 
  all 
  sandstone 
  slopes 
  rapidly 
  

   toward 
  the 
  west. 
  For 
  some 
  distance 
  along 
  the 
  highway 
  or 
  in 
  the 
  

   fields 
  the 
  top 
  of 
  it 
  frequently 
  shows, 
  with 
  a 
  small 
  stream 
  or 
  

  

  