﻿32 
  Geological 
  Survey 
  of 
  Louisiana 
  [Sect. 
  

  

  miles 
  up 
  and 
  down 
  the 
  river. 
  To 
  the 
  east 
  of 
  the 
  Ouachita 
  

   ■stretch 
  wide 
  alluvial 
  plains. 
  

  

  In 
  general 
  there 
  would 
  seem 
  to 
  be 
  very 
  little 
  calcareous 
  matter 
  

   in 
  the 
  substrata 
  of 
  this 
  region. 
  Towards 
  011a, 
  however, 
  white 
  

   calcareous 
  concretions 
  are 
  found 
  in 
  wells. 
  

  

  Lone 
  Grave 
  bluff. 
  — 
  Hopkins 
  gives 
  a 
  section 
  at 
  this 
  locality. 
  

   From 
  the 
  character 
  of 
  the 
  various 
  strata 
  named 
  (white 
  sand, 
  

   laminated 
  lignitic 
  clay 
  et 
  al.), 
  it 
  is 
  evident 
  the 
  same 
  condition 
  of 
  

   deposition 
  obtained 
  here 
  as 
  at 
  Columbia, 
  and 
  the 
  beds 
  are 
  doubt- 
  

   less 
  of 
  the 
  same 
  age. 
  

  

  (Ouachita 
  Parish.) 
  

  

  Monroe. 
  — 
  This 
  is 
  a 
  region 
  very 
  difl&cult 
  to 
  study 
  geologically 
  

   on 
  account 
  of 
  the 
  lack 
  of 
  good 
  sections. 
  Lerch 
  reports 
  Clai- 
  

   borne 
  fossils, 
  from 
  the 
  artesian 
  well 
  bored 
  at 
  this 
  place 
  under 
  the 
  

   ■supervision 
  of 
  W. 
  A. 
  Strong. 
  Specimens 
  supposed 
  to 
  be 
  these 
  

   have 
  been 
  sent 
  us 
  from 
  Baton 
  Rouge 
  but 
  they 
  are 
  almost 
  cer- 
  

   tainly 
  from 
  Smithville, 
  Tex., 
  as 
  determined 
  by 
  the 
  character 
  of 
  

   the 
  fauna 
  and 
  the 
  very 
  color 
  of 
  the 
  embedding 
  material. 
  (See 
  

   Lerch 
  's 
  ist 
  Report, 
  p. 
  21.) 
  They 
  were 
  from 
  a 
  depth 
  of 
  185 
  

   feet, 
  in 
  a 
  black 
  clay 
  stratum. 
  

  

  Calhoun. 
  — 
  The 
  red 
  sands 
  and 
  gray 
  clays 
  along 
  the 
  railroad 
  

   from 
  Monroe 
  to 
  Calhoun 
  have 
  already 
  been 
  described 
  by 
  Lerch 
  

   in 
  his 
  first 
  report 
  pp. 
  21-22, 
  25. 
  

  

  (Jackson 
  Parish.) 
  

  

  Our 
  information 
  regarding 
  the 
  geology 
  of 
  this 
  parish 
  is 
  very 
  

   meagre. 
  Johnson 
  * 
  has 
  mentioned 
  a 
  few 
  iron 
  ore 
  deposits 
  of 
  

   apparently 
  limited 
  extents, 
  and 
  Vaughan 
  f 
  has 
  given 
  two 
  locali- 
  

   ties 
  of 
  Lower 
  Claiborne 
  Eocene 
  fossils 
  on 
  the 
  Liberty 
  hill, 
  

   Vernon 
  road. 
  One 
  10 
  miles 
  east 
  of 
  Liberty 
  hill, 
  the 
  other 
  15 
  

   miles 
  east 
  of 
  the 
  same 
  place. 
  

  

  (Lincoln 
  Parish.) 
  

  

  Vining 
  mills. 
  — 
  This 
  parish 
  has, 
  as 
  yet, 
  received 
  but 
  little 
  

   attention. 
  Johnson 
  mentions 
  high 
  hills 
  capped 
  with 
  ferruginous 
  

  

  *Iron 
  Ores 
  of 
  La. 
  and 
  Tex., 
  p. 
  47. 
  

   f 
  U. 
  S, 
  Geol. 
  Sur. 
  BulL 
  142, 
  p. 
  32. 
  

  

  