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  NEW 
  YORK 
  STATE 
  MUSEUM 
  

  

  northern 
  end 
  northeast 
  of 
  Rensselaerville 
  village. 
  From 
  the 
  

   northern 
  end 
  of 
  the 
  above 
  ridge 
  the 
  direction 
  is 
  in 
  general 
  south- 
  

   easterly 
  across 
  the 
  southwestern 
  portion 
  of 
  Westerlo 
  in 
  the 
  valley 
  

   of 
  Basic 
  creek, 
  which 
  it 
  crosses 
  below 
  South 
  Westerlo, 
  in 
  the 
  

   northern 
  part 
  of 
  Greenville, 
  Greene 
  co. 
  and 
  runs 
  northeasterly 
  

   along 
  the 
  ridge 
  east 
  of 
  the 
  creek 
  and 
  South 
  Westerlo 
  till 
  it 
  turns 
  

   southeasterly 
  again 
  and 
  crosses 
  the 
  line 
  into 
  Greenville 
  about 
  two 
  

   miles 
  east 
  of 
  South 
  Westerlo. 
  It 
  will 
  be 
  noticed 
  on 
  referring 
  to 
  

   the 
  accompanying 
  geological 
  map 
  that 
  in 
  the 
  southern 
  part 
  of 
  

   Albany 
  and 
  northern 
  part 
  of 
  Greene 
  counties 
  the 
  boundaries 
  of 
  

   the 
  formations 
  make 
  frequent 
  loops 
  to 
  the 
  north, 
  and 
  this 
  is 
  

   caused 
  by 
  the 
  abrupt 
  northern 
  ends 
  of 
  the 
  ridges 
  between 
  the 
  

   streams 
  which 
  have 
  a 
  generally 
  southerly 
  direction, 
  so 
  that 
  a 
  line 
  

   follows 
  down 
  the 
  flank 
  of 
  a 
  hill 
  on 
  the 
  western 
  side 
  of 
  a 
  stream 
  

   till 
  it 
  crosses 
  it 
  when 
  it 
  follows 
  the 
  rise 
  of 
  the 
  ridge 
  on 
  the 
  east 
  

   frequently 
  till 
  it 
  makes 
  the 
  turn 
  around 
  its 
  northern 
  end. 
  As 
  

   already 
  stated 
  the 
  red 
  rocks 
  of 
  the 
  Oneonta 
  formation 
  extend 
  con- 
  

   siderably 
  farther 
  east 
  along 
  the 
  southern 
  line 
  of 
  Westerlo 
  than 
  is 
  

   represented 
  on 
  the 
  Geologic 
  map 
  of 
  New 
  York 
  since 
  they 
  cross 
  

   Basic 
  creek 
  to 
  the 
  east 
  below 
  South 
  Westerlo 
  and 
  run 
  southeast- 
  

   erly 
  across 
  the 
  northeastern 
  part 
  of 
  Greenville 
  township 
  instead 
  

   of 
  keeping 
  to 
  the 
  west 
  of 
  Basic 
  creek 
  until 
  several 
  miles 
  below 
  

   West 
  Greenville. 
  

  

  GREENE 
  COUNTY 
  

  

  Greene 
  co. 
  lies 
  to 
  the 
  south 
  of 
  Albany 
  and 
  the 
  eastern 
  part 
  

   of 
  Schoharie 
  co. 
  and 
  extends 
  eastward 
  from 
  Delaware 
  co. 
  

   to 
  the 
  Hudson 
  river. 
  The 
  Schoharie 
  river 
  rises 
  in 
  the 
  Catskills, 
  

   which 
  cover 
  the 
  western 
  half 
  of 
  the 
  county, 
  and 
  flows 
  in 
  a 
  north- 
  

   westerly 
  direction 
  till 
  it 
  enters 
  Schoharie 
  co. 
  The 
  eastern 
  

   face 
  of 
  the 
  high 
  land 
  or 
  plateau 
  out 
  of 
  which 
  the 
  Oatskill 
  moun- 
  

   tains 
  have 
  been 
  carved 
  by 
  denudation 
  ends 
  abruptly, 
  and 
  when 
  

   seen 
  from 
  the 
  comparatively 
  low 
  land 
  between 
  -the 
  mountains 
  

   and 
  the 
  Hudson 
  river 
  has 
  the 
  appearance 
  of 
  a 
  high 
  and 
  massive 
  

   mountain 
  range. 
  To 
  the 
  east 
  of 
  the 
  mountains 
  is 
  a 
  rolling 
  country 
  

   with 
  low 
  and 
  generally 
  rounded 
  hills 
  till 
  the 
  limestone 
  ridges 
  are 
  

  

  