﻿3i8 
  Geological 
  Survey 
  of 
  Louisiana 
  [Sect. 
  

  

  Colfax 
  Base 
  Line 
  Established 
  by 
  U. 
  S. 
  Engineers 
  * 
  

  

  " 
  Colfax 
  base 
  line, 
  tertiary 
  triangulation 
  of 
  Red 
  river, 
  was 
  in 
  

   Grant 
  Parish, 
  La., 
  near 
  Colfax, 
  but 
  was 
  marked 
  permanently 
  

   only 
  at 
  one 
  end; 
  the 
  triangulation 
  stations 
  adjacent 
  to 
  south 
  

   base 
  at 
  Colfax 
  were 
  permanently 
  marked. 
  

  

  ' 
  ' 
  South 
  base 
  is 
  marked 
  by 
  the 
  point 
  of 
  a 
  nail 
  set 
  in 
  cement 
  

   within 
  the 
  end 
  of 
  a 
  vitrified 
  sewer 
  pipe. 
  The 
  pipe 
  is 
  12 
  centi- 
  

   meters 
  in 
  diameter 
  and 
  75 
  centimeters 
  long. 
  The 
  top 
  of 
  the 
  

   pipe 
  projects 
  about 
  i 
  decimeter 
  above 
  ground 
  and 
  stands 
  in 
  a 
  

   meadow 
  just 
  above 
  Colfax. 
  It 
  is 
  about 
  100 
  meters 
  northwest 
  of 
  

   the 
  row 
  of 
  cabins 
  on 
  C. 
  H. 
  Teal's 
  place 
  and 
  about 
  no 
  meters 
  

   northeast 
  of 
  the 
  fence 
  enclosing 
  a 
  small 
  lot. 
  " 
  

  

  " 
  Elevation, 
  35.92 
  meters, 
  [Cairo 
  Datum.] 
  

  

  " 
  Latitude, 
  31° 
  29' 
  50". 
  

  

  "Triangulation 
  stations 
  are 
  marked 
  in 
  a 
  manner 
  similar 
  to 
  

   South 
  base. 
  

  

  "Azimuth, 
  South 
  base 
  to 
  Sta. 
  260,77° 
  07'. 
  Distance 
  801 
  meters. 
  

   South 
  base 
  to 
  Sta. 
  260a, 
  16° 
  55'. 
  Distance 
  1093.6 
  

  

  meters. 
  

   South 
  base 
  to 
  Sta. 
  261, 
  333° 
  40'. 
  Distance 
  1160.6 
  

   meters." 
  

  

  W1NNF1E1.D 
  

  

  General 
  location. 
  — 
  Court 
  house 
  yard, 
  east 
  of 
  Court 
  house. 
  

  

  Marks. 
  — 
  Four 
  limestone 
  boulders 
  from 
  the 
  " 
  Marble 
  Quarry." 
  

   Exact 
  mark 
  consist 
  of 
  lead 
  plugs, 
  as 
  elsewhere. 
  N. 
  and 
  S. 
  are 
  

   near 
  the 
  north 
  and 
  south 
  limits 
  of 
  the 
  court 
  yard. 
  In 
  case 
  of 
  

   doubt 
  see 
  Messrs. 
  Dunn, 
  Bailey, 
  Wallace 
  or 
  any 
  other 
  citizen. 
  

  

  Columbia 
  

  

  General 
  location. 
  — 
  Diagonally 
  across 
  Court 
  house 
  yard 
  passing 
  

   but 
  a 
  few 
  feet 
  west 
  of 
  the 
  corner 
  of 
  the 
  same. 
  

  

  Marks. 
  — 
  Calcareous 
  boulders. 
  All 
  four 
  within 
  the 
  court 
  yard 
  

   limits. 
  Line 
  defined 
  by 
  sunken 
  plugs. 
  In 
  case 
  of 
  doubt 
  as 
  to 
  

   location 
  drop 
  a 
  card 
  to 
  A. 
  J. 
  Daniel, 
  Parish 
  Surveyor, 
  Kelly, 
  La. 
  

  

  * 
  The 
  information 
  here 
  and 
  elsewhere 
  credited 
  to 
  the 
  U. 
  S. 
  Engineers 
  was 
  

   very 
  kindly 
  furnished 
  by 
  Maj. 
  J. 
  H. 
  Willard, 
  Vicksburg, 
  Miss. 
  

  

  