﻿Plate 
  5 
  

  

  AV. 
  J. 
  Miller, 
  photo 
  

  

  View 
  along 
  Black 
  river, 
  i>4 
  miles 
  above 
  the 
  mouth 
  of 
  Sugar 
  river, 
  

   taken 
  to 
  show 
  the 
  sharp 
  contact 
  between 
  the 
  Trenton 
  and 
  the 
  Black 
  

   River 
  limestones. 
  During 
  high 
  water 
  the 
  thiii 
  bedded 
  Trenton 
  lime- 
  

   stones 
  have 
  been 
  worn 
  back 
  to 
  leave 
  exposed 
  a 
  distinct 
  platform 
  of 
  

   the 
  underlying 
  massive 
  Black 
  River 
  limestone. 
  

  

  