﻿i 
  3 
  o 
  

  

  NEW 
  YORK 
  STATE 
  MUSEUM 
  

  

  46, 
  

  

  Trent 
  river 
  channel, 
  101 
  

   Trenton 
  Falls, 
  chasm, 
  109 
  

   Trenton 
  limestone 
  and 
  shale, 
  13, 
  

  

  47 
  

   Triassic 
  period, 
  61-63, 
  74 
  

   Tug 
  Hill 
  province, 
  21-22, 
  52, 
  69, 
  112 
  

   Tully 
  limestone, 
  12, 
  56, 
  57 
  

  

  Utica 
  shale, 
  13, 
  46 
  

  

  Valley 
  trains, 
  94 
  

   Vernon 
  red 
  shale, 
  54 
  

   Volcanic 
  rocks, 
  8 
  

   Vulcanism, 
  10 
  

  

  Wallkill 
  river, 
  79 
  

   Wappinger 
  limestone, 
  46 
  

   Warren, 
  Lake, 
  99 
  

   Waterfalls, 
  107 
  

   Watkins 
  glen, 
  114 
  

   Weathering, 
  effects 
  of, 
  10 
  

   Wells, 
  42, 
  43 
  

  

  West 
  Canada 
  creek, 
  80, 
  86, 
  109 
  

   Westfield, 
  114 
  

   Whetstone 
  gulf, 
  112 
  

   White 
  mountains, 
  47, 
  48 
  

   Whittlesey, 
  Lake, 
  98 
  

  

  Yosts, 
  21, 
  73 
  

  

  