﻿I04 
  Geological 
  Survey 
  of 
  Louisiana 
  [Sect. 
  

  

  sandstone 
  which 
  in 
  turn 
  are 
  overlaid 
  by 
  beds 
  of 
  white 
  quartz 
  

   gravel 
  and 
  conglomerate. 
  Above 
  the 
  gravel 
  are 
  from 
  50 
  to 
  75 
  

   feet 
  of 
  yellow 
  and 
  white 
  sands. 
  

  

  Ouachita 
  river 
  g?'avel 
  train. 
  — 
  The 
  gravel 
  train 
  along 
  the 
  

   Ouachita 
  is 
  not 
  nearly 
  so 
  extensive. 
  It 
  is 
  reported 
  from 
  about 
  12 
  

   miles 
  south 
  of 
  Monroe. 
  About 
  three 
  miles 
  north, 
  on 
  Col. 
  

   Jones' 
  stock 
  farm, 
  there 
  is 
  a 
  large 
  gravel 
  pit 
  which 
  is 
  of 
  great 
  

   local 
  importance. 
  Gravel 
  is 
  seen 
  along 
  the 
  railroad 
  for 
  two 
  

   miles 
  west 
  of 
  Monroe. 
  A 
  prolongation 
  of 
  the 
  same 
  deposit 
  

   appears 
  in 
  force 
  at 
  the 
  bluff 
  about 
  a 
  mile 
  above 
  the 
  mouth 
  of 
  

   the 
  D'Arbonne 
  and 
  at 
  Ouachita 
  oSXy 
  . 
  At 
  Ouachita 
  Q\\.y 
  the 
  

   gravel 
  band 
  is 
  about 
  three 
  miles 
  wide. 
  

  

  In 
  northern 
  Union 
  a7id 
  Claiborne. 
  — 
  Gravel 
  localities 
  are 
  sprink- 
  

   led 
  all 
  over 
  the 
  northern 
  part 
  of 
  Union 
  and 
  northern 
  Claiborne. 
  

   The 
  following 
  localities 
  maj^ 
  be 
  mentioned 
  : 
  near 
  ly'Outre 
  bridge 
  

   on 
  the 
  Spearsville-Ouachita 
  city 
  road 
  ; 
  south 
  of 
  Cherrj^ 
  Ridge 
  ; 
  

   around 
  Farmersville 
  and 
  as 
  far 
  south 
  as 
  the 
  D'Arbonne 
  ; 
  on 
  the 
  

   hills 
  west 
  of 
  Corney 
  ferry, 
  three 
  or 
  four 
  miles 
  from 
  Farmersville 
  ; 
  

   at 
  the 
  Corney 
  bridge 
  on 
  the 
  Junction 
  cit3'-L,isbon 
  road 
  ; 
  on 
  the 
  

   hills 
  on 
  the 
  south 
  side 
  of 
  Middle 
  Fork 
  bottoms 
  near 
  Colquett 
  

   bridge 
  ; 
  and 
  between 
  Colquett 
  and 
  Gordon 
  in 
  occasional 
  patches. 
  

  

  Arotind 
  the 
  Cretaceous 
  outcrops. 
  — 
  Besides 
  these 
  localities 
  sev- 
  

   eral 
  of 
  the 
  so-called 
  Cretaceous 
  outcrops 
  show 
  gravel 
  deposits, 
  

   viz. 
  : 
  Ray 
  burn's 
  salt 
  works 
  and 
  the 
  Five 
  Islands. 
  For 
  information 
  

   on 
  the 
  gravel 
  of 
  the 
  Five 
  Islands 
  see 
  special 
  report. 
  

  

  Localities 
  where 
  the 
  gravels 
  are 
  found 
  in 
  wells. 
  — 
  Besides 
  these 
  

   surface 
  outcrops 
  wells 
  have 
  in 
  several 
  places 
  revealed 
  the 
  pres- 
  

   ence 
  of 
  beds 
  of 
  sands 
  and 
  gravel 
  which 
  presumably 
  belong 
  to 
  

   this 
  formation. 
  A 
  bed 
  of 
  gravel 
  from 
  20 
  to 
  40 
  feet 
  thick 
  seems 
  

   to 
  underlie 
  the 
  Red 
  river 
  valley 
  in 
  the 
  vicinit}- 
  of 
  Shreveport 
  at 
  

   a 
  depth 
  of 
  from 
  50 
  to 
  80 
  feet. 
  Hopkins 
  reports 
  gravel 
  under 
  

   the 
  Avoyelles 
  prairie 
  at 
  a 
  depth 
  of 
  40 
  feet. 
  In 
  nearly 
  all 
  the 
  

   Port 
  Hudson 
  territory 
  deep 
  wells 
  reach 
  the 
  Lafayette 
  gravels. 
  

  

  Regions 
  with 
  no 
  Gravel 
  

  

  Four 
  principal 
  regions 
  in 
  which 
  no 
  gravel 
  has 
  been 
  observed 
  

   may 
  be 
  thus 
  outlined 
  : 
  (i) 
  The 
  alluvial 
  lands 
  ; 
  (2) 
  the 
  country 
  

   overlaid 
  by 
  the 
  Port 
  Hudson 
  ; 
  (3) 
  an 
  area 
  centrally 
  located 
  

  

  