﻿400 
  G. 
  R. 
  Mansfield 
  — 
  The 
  Wasatch 
  and 
  Salt 
  Lake 
  

  

  Wasatch 
  formation. 
  — 
  The 
  Wasatch 
  formation 
  was 
  

   named 
  by 
  Hayden 
  2 
  in 
  1869 
  from 
  Wasatch 
  station 
  on 
  the 
  

   Union 
  Pacific 
  Railroad 
  in 
  Summit 
  County, 
  Utah. 
  

  

  The 
  Wasatch 
  deposits 
  in 
  neighboring 
  regions 
  of 
  south- 
  

   western 
  Wyoming 
  have 
  been 
  subdivided 
  by 
  Veatch 
  3 
  into 
  

   three 
  formations: 
  (1) 
  the 
  Almy 
  formation 
  at 
  the 
  base, 
  

   consisting 
  of 
  reddish-yellow 
  sandstones 
  and 
  conglom- 
  

  

  Explanation 
  

  

  Fort 
  Hall 
  Indian 
  

   Reservation 
  

  

  Cranes 
  Flat 
  

   Quadrangle 
  

  

  Henry- 
  

   Quadrangle 
  

  

  Lanes 
  Creek 
  

   Quadrangle 
  

  

  Freedom 
  

  

  Quadrangle 
  

  

  ■Slug 
  Creek 
  

   Quadrangle 
  

  

  , 
  Crow 
  Creek 
  

   Quadrangle 
  

  

  .Montpelier 
  

   Quadrangle 
  

  

  .Veatch 
  

  

  Prof. 
  Paper 
  56 
  

  

  Fig. 
  1. 
  Index 
  map, 
  showing 
  Location 
  of 
  areas 
  

  

  erates, 
  in 
  some 
  places 
  with 
  deep 
  red 
  color; 
  (2) 
  the 
  

   Fowkes 
  formation, 
  white 
  or 
  light 
  : 
  colored 
  rhyolitic 
  ash 
  

   with 
  some 
  calcareous 
  beds; 
  and 
  (3) 
  the 
  Knight 
  forma- 
  

   tion, 
  consisting 
  of 
  reddish-yellow 
  sandy 
  clays 
  with 
  irreg- 
  

  

  2 
  Hayden, 
  F. 
  V.: 
  [Third 
  Ann.] 
  Preliminary 
  field 
  report 
  U. 
  S. 
  Geol. 
  Sur- 
  

   vey 
  of 
  Colorado 
  and 
  New 
  Mexico 
  for 
  1869, 
  p. 
  90, 
  1869. 
  

  

  3 
  Veatch, 
  A. 
  C. 
  : 
  Geography 
  and 
  geology 
  of 
  a 
  portion 
  of 
  southwestern 
  

   Wyoming, 
  U. 
  S. 
  Geol. 
  Survey, 
  Prof. 
  Paper 
  56, 
  p. 
  88, 
  1907. 
  

  

  