﻿ADIRONDACK 
  MAGNETIC 
  IRON 
  ORES 
  1 
  59 
  

  

  iron. 
  They 
  are 
  also 
  coarser 
  grained 
  as 
  a 
  rule 
  than 
  the 
  ores 
  in 
  the 
  

   gabbro. 
  

  

  The 
  deposits 
  outcrop 
  on 
  both 
  sides 
  of 
  the 
  narrow 
  valley 
  occupied 
  

   by 
  Lakes 
  Sanford 
  and 
  Henderson 
  and 
  their 
  outlet 
  which 
  is 
  one 
  of 
  

   the 
  head-streams 
  of 
  the 
  Hudson 
  river. 
  The 
  valley 
  bottom 
  lies 
  at 
  

   an 
  elevation 
  of 
  from 
  1700 
  to 
  1800 
  feet. 
  The 
  situation 
  of 
  the 
  more 
  

   important 
  ore 
  bodies 
  is 
  shown 
  on 
  the 
  map 
  reproduced 
  from 
  a 
  

   section 
  of 
  the 
  Santanoni 
  quadrangle 
  [pi. 
  15]. 
  The 
  outlines 
  of 
  the 
  

   bodies 
  as 
  sketched 
  are 
  to 
  be 
  considered 
  as 
  approximations 
  only, 
  

   since 
  they 
  have 
  not 
  been 
  fully 
  proved. 
  It 
  will 
  be 
  observed 
  that 
  

   the 
  deposits 
  are 
  grouped 
  along 
  a 
  north-south 
  belt 
  about 
  2 
  miles 
  

   wide 
  and 
  4 
  or 
  5 
  miles 
  long. 
  

  

  On 
  the 
  south 
  end 
  are 
  the 
  Sanford 
  and 
  Cheney 
  ore 
  bodies 
  situated 
  

   on 
  the 
  east 
  and 
  west 
  sides 
  respectively 
  of 
  Lake 
  Sanford. 
  The 
  

   Sanford 
  is 
  perhaps 
  the 
  most 
  important 
  of 
  the 
  whole 
  group. 
  It 
  

   lies 
  between 
  the 
  crest 
  of 
  Sanford 
  hill 
  and 
  the 
  lake 
  shore, 
  occupying 
  

   in 
  its 
  widest 
  part 
  the 
  entire 
  interval 
  of 
  about 
  J 
  mile 
  and 
  running 
  

   north 
  and 
  south 
  for 
  fully 
  twice 
  the 
  distance. 
  Outcrops 
  are 
  found 
  

   on 
  the 
  west 
  shoulder 
  of 
  the 
  hill, 
  at 
  a 
  point 
  about 
  300 
  feet 
  above 
  

   the 
  lake 
  level 
  where 
  a 
  small 
  quantity 
  of 
  ore 
  has 
  been 
  removed, 
  

   and 
  at 
  many 
  points 
  directly 
  south. 
  For 
  the 
  most 
  part 
  the 
  out- 
  

   crop 
  is 
  concealed, 
  however, 
  by 
  a 
  light 
  covering 
  of 
  soil 
  and 
  glacial 
  

   materials. 
  The 
  Sanford 
  deposit 
  was 
  prospected 
  with 
  considerable 
  

   care 
  by 
  Professor 
  Emmons 
  who 
  has 
  left 
  a 
  circumstantial 
  and 
  

   faithful 
  record 
  of 
  the 
  results. 
  1 
  Five 
  lines 
  of 
  excavation 
  were 
  made 
  

   under 
  his 
  direction, 
  four 
  running 
  transverse 
  and 
  one 
  parallel 
  to 
  

   the 
  length 
  of 
  the 
  body. 
  The 
  middle 
  transverse 
  section 
  began 
  at 
  

   the 
  base 
  of 
  the 
  hill 
  and 
  ran 
  eastward 
  at 
  right 
  angles 
  to 
  the 
  course 
  of 
  

   the 
  ore, 
  a 
  distance 
  of 
  514 
  feet. 
  Its 
  exact 
  location 
  is 
  not 
  now 
  ascer- 
  

   tainable 
  though 
  probably 
  it 
  was 
  about 
  on 
  a 
  line 
  with 
  the 
  opening 
  

   mentioned 
  above. 
  The 
  record 
  of 
  this 
  section 
  which 
  is 
  given 
  in 
  

   greatest 
  detail 
  affords 
  a 
  good 
  idea 
  as 
  to 
  the 
  general 
  character 
  of 
  

   the 
  ore 
  body 
  and 
  is 
  here 
  quoted. 
  

  

  Record 
  of 
  the 
  middle 
  transverse 
  section 
  of 
  the 
  Sanford 
  ore 
  body 
  made 
  

   by 
  Professor 
  Emmons 
  

  

  Pit 
  Interval 
  

  

  [no. 
  feet 
  

  

  i 
  . 
  . 
  Fine 
  granular 
  feldspar, 
  intermixed 
  with 
  iron, 
  garnet 
  

  

  and 
  hornblende 
  

   ^2 
  36 
  Rich 
  ore 
  breaking 
  into 
  tabular 
  masses 
  

  

  1 
  Survey 
  of 
  the 
  Second 
  Geological 
  District. 
  1842. 
  p. 
  249. 
  

  

  