﻿ADIRONDACK 
  MAGNETIC 
  IRON 
  ORES 
  . 
  115 
  

  

  group 
  of 
  workings 
  in 
  the 
  near 
  vicinity 
  of 
  Lyon 
  Mountain, 
  and 
  

   Parkhurst 
  shaft 
  which 
  lies 
  about 
  2 
  miles 
  northeast 
  of 
  the 
  latter. 
  

  

  Mine 
  81. 
  This 
  mine 
  is 
  a 
  little 
  over 
  2 
  miles 
  in 
  a 
  direct 
  line 
  south- 
  

   west 
  of 
  Lyon 
  Mountain 
  on 
  the 
  southern 
  face 
  of 
  a 
  prominent 
  ridge 
  

   which 
  offshoots 
  from 
  Averill 
  peak 
  toward 
  Upper 
  Chateaugay 
  lake. 
  

   The 
  deposit 
  strikes 
  n. 
  20 
  e. 
  into 
  the 
  ridge. 
  It 
  is 
  reported 
  to 
  have 
  

   been 
  traced 
  by 
  magnetic 
  readings 
  across 
  the 
  ridge 
  toward 
  Lyon 
  

   Mountain 
  and 
  its 
  strike 
  brings 
  it 
  in 
  line 
  with 
  the 
  Phillips 
  ore 
  body 
  

   west 
  of 
  the 
  main 
  group. 
  It 
  has 
  been 
  mined 
  along 
  its 
  course 
  for 
  a 
  

   distance 
  of 
  1000 
  feet 
  or 
  more. 
  At 
  present 
  the 
  only 
  accessible 
  work- 
  

   ings 
  are 
  two 
  drifts 
  near 
  the 
  surface, 
  the 
  shafts 
  being 
  dismantled 
  

   and 
  filled 
  with 
  water. 
  The 
  eastern 
  drift 
  which 
  lies 
  higher 
  upon 
  

   the 
  ridge 
  is 
  approximately 
  600 
  feet 
  long 
  and 
  from 
  25 
  to 
  75 
  feet 
  

   high, 
  and 
  is 
  open 
  cut 
  for 
  some 
  distance 
  from 
  the 
  entrance 
  at 
  the 
  

   south 
  end. 
  On 
  the 
  western 
  section 
  there 
  are 
  three 
  shafts, 
  with 
  a 
  

   drift 
  from 
  the 
  central 
  shaft 
  extended 
  in 
  the 
  direction 
  of 
  the 
  first, 
  

   but 
  at 
  a 
  slightly 
  lower 
  level. 
  Two 
  of 
  the 
  shafts 
  have 
  been 
  carried 
  

   down 
  to 
  a 
  depth 
  of 
  400 
  feet 
  and 
  a 
  series 
  of 
  levels 
  was 
  opened 
  shortly 
  

   before 
  the 
  mine 
  was 
  abandoned. 
  The 
  ore 
  averages 
  about 
  18 
  feet 
  

   thick 
  with 
  only 
  minor 
  pinches 
  and 
  swells. 
  It 
  stands 
  nearly 
  vertical, 
  

   inclining 
  slightly 
  to 
  the 
  east 
  in 
  some 
  places 
  and 
  in 
  other 
  parts 
  

   slightly 
  to 
  the 
  west. 
  

  

  The 
  adjoining 
  gneiss 
  is 
  the 
  augite 
  variety, 
  almost 
  massive 
  and 
  

   carrying 
  little 
  quartz. 
  Specimens 
  from 
  near 
  the 
  contact 
  show 
  

   abundance 
  of 
  titanite 
  and 
  some 
  hornblende. 
  There 
  is 
  little 
  or 
  no 
  

   gradation 
  along 
  the 
  walls; 
  practically 
  the 
  entire 
  width 
  of 
  the 
  ore 
  

   zone 
  is 
  occupied 
  by 
  the 
  workings. 
  

  

  Several 
  dikes 
  are 
  found 
  in 
  the 
  eastern 
  drift. 
  They 
  are 
  all 
  diabase. 
  

   The 
  smallest 
  is 
  about 
  3 
  inches 
  and 
  the 
  largest 
  about 
  3 
  feet 
  wide. 
  

   Their 
  direction 
  is' 
  north 
  west 
  -southeast, 
  except 
  in 
  one 
  instance 
  

   near 
  the 
  heading 
  of 
  the 
  drift 
  where 
  a 
  2 
  -foot 
  dike 
  occurs 
  on 
  the 
  

   north 
  side 
  of 
  the 
  ore 
  body 
  running 
  nearly 
  parallel 
  to 
  it. 
  According 
  

   to 
  local 
  records, 
  the 
  mine 
  was 
  the 
  first 
  one 
  ta 
  be 
  explored 
  in 
  the 
  

   Lyon 
  Mountain 
  district 
  and 
  was 
  worked 
  to 
  some 
  extent 
  as 
  early 
  

   as 
  1840. 
  No 
  systematic 
  mining 
  was 
  undertaken, 
  however, 
  until 
  

   1878 
  when 
  the 
  western 
  drift 
  was 
  opened. 
  The 
  eastern 
  drift 
  was 
  

   opened 
  in 
  1880. 
  The 
  ore 
  was 
  hauled 
  by 
  wagon 
  to 
  the 
  forges 
  at 
  

   Clayburg. 
  According 
  to 
  Smock, 
  mining 
  was 
  suspended 
  about 
  

   1885 
  ; 
  but 
  operations 
  were 
  resumed 
  a 
  few 
  years 
  later 
  and 
  continued 
  

   up 
  to 
  1902, 
  since 
  which 
  time 
  the 
  mine 
  has 
  been 
  idle. 
  

  

  The 
  ore 
  does 
  not 
  differ 
  in 
  appearance 
  from 
  the 
  general 
  run 
  of 
  

   the 
  mines 
  at 
  Lyon 
  Mountain. 
  It 
  is 
  a 
  granular 
  aggregate 
  of 
  magne- 
  

  

  