﻿Plate 
  13 
  

  

  An 
  outcrop 
  of 
  typical 
  Grenville 
  (Precambric) 
  limestone 
  showing 
  the 
  folded 
  

   or 
  contorted 
  and 
  streaked 
  character 
  of 
  the 
  rock. 
  View 
  taken 
  i 
  x 
  / 
  2 
  miles 
  

   southeast 
  of 
  Johnsburg, 
  Warren 
  county. 
  

  

  W. 
  J. 
  Miller, 
  photo 
  

  

  