﻿384 
  REPORT 
  UNITED 
  STATES 
  GEOLOGICAL 
  SURVEY. 
  

  

  -we 
  named 
  Eagle 
  Eiver 
  Mountains 
  is 
  confined 
  to 
  an 
  area 
  that 
  extends 
  

   from 
  the 
  headwaters 
  of 
  Gores 
  Creek 
  to 
  the 
  headwaters 
  of 
  Eagle 
  Eiver 
  

   and 
  Ten 
  Mile 
  Creek 
  ; 
  or 
  from 
  its 
  southern 
  connection 
  with 
  the 
  Gores 
  

   Mountains 
  to 
  its 
  northern 
  connection 
  with 
  the 
  main 
  range 
  near 
  Mount 
  

   Arkansas. 
  The 
  entire 
  crest 
  of 
  this 
  range 
  is 
  22 
  miles 
  long. 
  The 
  south- 
  

   ern 
  portion 
  of 
  the 
  crest 
  differs 
  in 
  appearance 
  with 
  the 
  northern 
  portion 
  ; 
  

   the 
  northern 
  part 
  being 
  broad, 
  bulky, 
  and 
  undulating, 
  while 
  the 
  south- 
  

   ern 
  poi-tion 
  of 
  the 
  crest 
  presents 
  about 
  10 
  points 
  of 
  which 
  several 
  appear 
  

   as 
  prominent 
  peaks 
  when 
  seen 
  from 
  the 
  Eagle 
  Eiver 
  or 
  from 
  the 
  west 
  

   side. 
  The 
  erosion 
  has 
  not 
  been 
  so 
  destructive 
  to 
  the 
  eastern 
  slope 
  as 
  

   to 
  the 
  western. 
  

  

  The 
  highest 
  peak, 
  a 
  peak 
  of 
  prominence 
  in 
  that 
  district, 
  is 
  Eagle 
  Eiver 
  

   Peak, 
  which 
  rests 
  on 
  a 
  spur 
  2| 
  miles 
  east 
  from 
  the 
  axis 
  of 
  the 
  range, 
  and 
  

   nearly 
  7 
  miles 
  northeast 
  of 
  Mount 
  Arkansas. 
  The 
  elevation 
  of 
  the 
  latter 
  

   is 
  12,648 
  feet. 
  The 
  next 
  highest 
  reaches 
  only 
  11,988 
  feet, 
  while 
  the 
  

   third 
  highest 
  shows 
  an 
  elevation 
  of 
  11,783. 
  

  

  Several 
  prominent 
  spurs 
  branch 
  off 
  the 
  Eagle 
  Eiver 
  Mountains 
  in 
  a 
  

   western 
  direction 
  toward 
  Eagle 
  Eiver 
  Valley. 
  One 
  of 
  them 
  branches 
  

   off 
  from 
  a 
  point 
  on 
  the 
  crest 
  where 
  Good 
  Harbor 
  Creek 
  rises. 
  Its 
  entire 
  

   length 
  is 
  7 
  miles. 
  Another 
  spur 
  presses 
  between 
  Two 
  Elk 
  Creek 
  and 
  

   Gores 
  Creek 
  Valley, 
  which 
  has 
  an 
  elevation 
  of 
  2,600 
  feet 
  above 
  Gores 
  

   Valley, 
  and 
  a 
  length 
  of 
  7 
  miles. 
  Between 
  Two 
  Elk 
  Creek 
  and 
  Weary 
  

   Man's 
  Creek, 
  a 
  spur 
  of 
  5 
  miles 
  in 
  length 
  and 
  2,400 
  feet 
  relative 
  height 
  

   branches 
  off 
  toward 
  the 
  Eagle 
  Eiver 
  Valley. 
  The 
  total 
  extent 
  of 
  spurs 
  

   leaving 
  the 
  main 
  crest 
  in 
  all 
  directions 
  amounts 
  to 
  52 
  miles 
  in 
  length, 
  

   with 
  a 
  relative 
  height 
  of 
  2,200 
  feet. 
  There, 
  where 
  the 
  range 
  connects 
  

   with 
  the 
  Gores 
  Eange, 
  the 
  bulky, 
  flattish 
  character 
  of 
  the 
  mountains 
  

   disappears 
  and 
  receives 
  expression 
  again, 
  by 
  the 
  close 
  neighborhood 
  of 
  

   mountains 
  like 
  Eed 
  P^ak 
  and 
  its 
  neighbors. 
  

  

  The 
  principal 
  creeks 
  that 
  rise 
  in 
  the 
  Eagle 
  Eiver 
  Mountains 
  are 
  the 
  

   following: 
  On 
  the 
  eastern 
  slope, 
  Mclsulty 
  Creek, 
  Good 
  Harbor 
  Creek 
  

   and 
  its 
  tributaries, 
  and 
  Caiion 
  Creek. 
  On 
  the 
  western 
  slope 
  we 
  have 
  

   Eesolution 
  Creek, 
  Weary 
  Man's 
  Creek, 
  and 
  Two 
  Elk 
  Creek, 
  besides 
  

   manv 
  smaller 
  ones. 
  

  

  RANGE 
  OF 
  SECOND 
  ORDER. 
  

  

  Williams 
  Range, 
  or 
  Blue 
  River 
  Range 
  

  

  The 
  character 
  of 
  this 
  range 
  is 
  j)lain 
  and 
  simple, 
  except 
  a 
  small 
  shift- 
  

   ing 
  of 
  its 
  axis 
  two 
  miles 
  south 
  of 
  Dte 
  Peak, 
  which 
  causes 
  the 
  depression 
  

   over 
  which 
  Ute 
  Pass 
  leads. 
  There 
  is 
  no 
  striking 
  irregularity 
  in 
  the 
  

   range 
  from 
  its 
  point 
  of 
  intersection 
  with 
  Colorado 
  Front 
  Eange 
  to 
  its 
  ter- 
  

   minus 
  near 
  the 
  Grand 
  Eiver 
  Junction. 
  Two 
  bends, 
  one 
  in 
  the 
  upper 
  por- 
  

   tion 
  near 
  its 
  intersection 
  with 
  the 
  Cororado 
  Eange, 
  and 
  the 
  other 
  near 
  

   Ute 
  Pass, 
  are 
  the 
  only 
  cases 
  where 
  the 
  Williams 
  Eange 
  deviates 
  from 
  

   an 
  almost 
  direct 
  northwest 
  course. 
  It 
  constitutes 
  the 
  dividing 
  upheaval 
  

   between 
  the 
  Blue 
  and 
  the 
  Williams 
  Elvers, 
  and 
  shows 
  a 
  crest-length 
  of 
  

   35 
  miles 
  from 
  its 
  separation 
  from 
  the 
  main 
  range 
  to 
  a 
  point 
  7 
  J 
  miles 
  

   south 
  of 
  Grand 
  Eiver. 
  The 
  Ute 
  Pass 
  affords 
  the 
  only 
  facility 
  to 
  cross 
  

   from 
  the 
  Blue 
  Eiver 
  Valley 
  into 
  the 
  Williams 
  Eiver 
  country 
  or 
  vice 
  

   versa. 
  In 
  the 
  upper 
  part 
  of 
  Blue 
  Eiver 
  Valley 
  the 
  axis 
  of 
  the 
  range 
  is 
  

   about 
  4 
  miles 
  distant 
  from 
  the 
  riv^er, 
  but 
  4 
  miles 
  north 
  of 
  Ute 
  Pass 
  Blue 
  

   Eiver 
  crowds 
  close 
  to 
  the 
  slope 
  of 
  the 
  mountains, 
  and 
  leaves 
  only 
  a 
  dis- 
  

   tance 
  of 
  2 
  miles 
  from 
  the 
  river 
  to 
  the 
  axis 
  of 
  the 
  range. 
  When 
  10 
  miles 
  

   farther 
  down 
  the 
  valley, 
  the 
  mountains 
  recede 
  again 
  eastward 
  to 
  a 
  dis- 
  

   tance 
  of 
  about 
  3 
  miles. 
  Ute 
  Peak 
  towers 
  directly 
  2 
  miles 
  to 
  the 
  south 
  

  

  