﻿Plate 
  1 
  

  

  bO 
  fcrtr-IU, 
  

  

  GNEISS 
  

  

  CRYSTALLINE 
  ANORTHOSITE 
  

  

  GABBRO 
  

  

  GNEISS01D 
  

  

  LIMESTONE 
  

   AND 
  BLAC*. 
  SCHISTS 
  

  

  ANORTHOSITE 
  OR 
  GABBRO 
  L 
  

  

  CAMBRIAN 
  LOWER 
  SILURIAN 
  GLACIAL 
  

  

  GRAVEL5 
  ETC. 
  

  

  POTSDAM 
  SAND 
  

   SCALE 
  OF 
  MILCS 
  

  

  ' 
  Z 
  3 
  Miles. 
  

   1 
  1 
  1 
  1 
  1 
  PRECAMB 
  QUARTZITE 
  

  

  Geological 
  map 
  of 
  Putnam 
  township. 
  Washington 
  co. 
  

  

  