﻿-n^l 
  :tfINTH 
  ANNUAL 
  KEPOKT 
  

   l/'\ 
  THE 
  UNITED 
  STATES 
  

  

  Geological 
  and 
  Geographical 
  Survey 
  

  

  OF 
  

  

  THE 
  TERRITORIES, 
  

  

  EMBRACING 
  

  

  COLORADO 
  AND 
  PARTS 
  OF 
  ADJACENT 
  TERRITORIES: 
  

  

  BEPORT 
  OF 
  PROGRESS 
  OF 
  m 
  EXPLORATION 
  FOR 
  THE 
  YEAR 
  

  

  1875. 
  

  

  By 
  F. 
  V. 
  HAYDEN, 
  

  

  UNITED 
  STATES 
  GEOLOGIST. 
  

  

  ^^"'^ 
  ''^^% 
  

  

  CONDUCTED 
  UNDER 
  THE 
  AUTHORITY 
  OF 
  THE 
  

   OP 
  THE 
  INTE.KIOK. 
  

  

  WASHINGTON: 
  

  

  GOVERNMENT 
  PRINTING 
  OFEICE. 
  

   1877. 
  

  

  