﻿386 
  EEPORT 
  UNITED 
  STATES 
  GEOLOGICAL 
  SURVEY. 
  

  

  the 
  northern 
  and 
  southern 
  portion 
  of 
  Vasquez 
  Eidge. 
  Down 
  to 
  this 
  

   offset 
  or 
  saddle 
  the 
  slopes 
  of 
  the 
  northern 
  portion 
  of 
  Vasquez 
  Eidge 
  de- 
  

   scend 
  from 
  11,700 
  feet 
  suddenly 
  to 
  9,800 
  feet, 
  which 
  is 
  about 
  the 
  general 
  

   altitude 
  of 
  the 
  northern 
  portion 
  of 
  Vasquez 
  Eidge 
  down 
  to 
  its 
  terminus 
  

   near 
  the 
  hot 
  sulphur 
  springs, 
  a 
  distance 
  of 
  10 
  miles. 
  Two 
  low 
  spurs 
  

   start 
  on 
  the 
  west 
  side 
  close 
  to 
  the 
  offset 
  and 
  run 
  parallel 
  to 
  Vasquez 
  

   Eidge, 
  between 
  Beaver 
  Creek 
  and 
  Williams 
  Eiver, 
  down 
  to 
  the 
  Grand 
  

   Eiver 
  below 
  the 
  caiion. 
  There 
  is 
  little 
  complexity 
  in 
  the 
  northern 
  part 
  

   of 
  Vasquez 
  Eidge. 
  Besides 
  the 
  two 
  spurs 
  mentioned 
  above, 
  we 
  find 
  on 
  

   the 
  east 
  side 
  a 
  detached 
  cluster 
  of 
  hills 
  connected 
  with 
  the 
  ridge 
  by 
  a 
  

   low 
  saddle, 
  and 
  occupying 
  part 
  of 
  the 
  space 
  between 
  Vasquez 
  Eidge 
  and 
  

   Frazier 
  Eiver, 
  and 
  among 
  that 
  cluster 
  of 
  hills 
  Camp 
  Creek 
  takes 
  its 
  

   rise, 
  which 
  is 
  tributary 
  to 
  the 
  Frazier 
  Eiver. 
  

  

  MIDDLE 
  PARK 
  MOUNTAIN 
  GROUPS 
  NORTH 
  OF 
  THE 
  MAIN 
  GRAND 
  RIVER. 
  

  

  On 
  the 
  north 
  side 
  of 
  Grand 
  Eiver, 
  that 
  is 
  between 
  the 
  main 
  Grand 
  

   Eiver 
  and 
  the 
  Park 
  Divide, 
  and 
  between 
  Troublesome 
  Eiver 
  and 
  the 
  

   v^alley 
  of 
  the 
  upper 
  or 
  north 
  Grand 
  Fork, 
  lies 
  an 
  area 
  of 
  410 
  square 
  

   miles 
  of 
  formidable 
  mountains, 
  which 
  area 
  is*commonly 
  allowed 
  to 
  con- 
  

   stitute 
  a 
  portion 
  of 
  the 
  Middle 
  Park 
  district, 
  and 
  if 
  we 
  grant 
  the 
  Con- 
  

   tinental 
  or 
  Park 
  Divide 
  to 
  be 
  the 
  division-line 
  between 
  the 
  North 
  Park 
  

   and 
  the 
  Middle 
  Park 
  district, 
  then 
  it 
  virtually 
  must 
  be 
  counted 
  in 
  its 
  

   area. 
  But 
  at 
  the 
  same 
  time 
  that 
  area 
  of 
  410 
  square 
  miles 
  do 
  not 
  con-, 
  

   tain 
  full 
  10 
  square 
  miles 
  of 
  park 
  area, 
  under 
  which 
  term 
  we 
  understand 
  

   a 
  flat, 
  low, 
  basin-like 
  area, 
  either 
  surrounded 
  by 
  or 
  between 
  variously- 
  

   shaped 
  mountains. 
  The 
  largest 
  creeks 
  that 
  drain 
  these 
  mountains 
  and 
  

   separate 
  them 
  into 
  several 
  groups 
  are 
  Troublesome 
  and 
  Willow 
  Creeks, 
  

   which 
  both 
  have 
  their 
  sources^ 
  in 
  the 
  highest 
  portion 
  of 
  the 
  Continental 
  

   or 
  Park 
  Divide, 
  and 
  18 
  miles 
  distant 
  to 
  the 
  north 
  of 
  Grand 
  Eiver. 
  

  

  Besides 
  the 
  two 
  streams 
  mentioned 
  are 
  two 
  lesser 
  streams. 
  Corral 
  and 
  

   Stillwater 
  Creeks 
  which 
  bead 
  in 
  the 
  middle 
  portion 
  of 
  these 
  mountains. 
  

   Corral 
  Creek 
  having 
  a 
  direct 
  length 
  of 
  9 
  miles, 
  and 
  Stillwater 
  Creek 
  a 
  

   length 
  of 
  7 
  miles. 
  This 
  mountain 
  area 
  divided 
  into 
  distinct 
  groups 
  by 
  

   the 
  channels 
  of 
  the 
  Troublesome 
  and 
  Willow 
  Creeks 
  may 
  be 
  designated 
  

   thus: 
  Troublesome 
  Eidge, 
  Corral 
  Peak 
  Cluster, 
  and 
  Willow 
  Creek 
  

   Mountains. 
  

  

  TROUBLESOME 
  RIDGE 
  

  

  Is 
  formed 
  by 
  a 
  huge 
  spur 
  coursing 
  south 
  from 
  the 
  Park 
  Divide 
  and 
  

   separating 
  the 
  two 
  branches 
  of 
  the 
  Troublesome 
  Eiver 
  in 
  east 
  and 
  

   west 
  branches. 
  The 
  west 
  branch 
  of 
  the 
  river 
  flows 
  at 
  the 
  base 
  of 
  the 
  

   western 
  slope 
  of 
  the 
  ridge, 
  while 
  the 
  east 
  branch 
  emerges 
  from 
  among 
  

   the 
  spurs 
  of 
  Park 
  View 
  Llountain 
  and 
  its 
  neighboring 
  peaks, 
  and 
  before 
  

   it 
  unites 
  with 
  its 
  brother, 
  the 
  western 
  branch, 
  forces 
  a 
  passage 
  through 
  

   that 
  ridge 
  and 
  forms 
  thereby 
  a 
  canon 
  of 
  nearly 
  2 
  miles 
  in 
  length. 
  South 
  

   of 
  the 
  canon 
  the 
  ridge 
  continues 
  on 
  for 
  3 
  miles 
  in 
  its 
  average 
  height 
  

   and 
  ruggedness, 
  after 
  which 
  it 
  flattens 
  out 
  and 
  assumes 
  a 
  terraced 
  char- 
  

   acter 
  before 
  it 
  terminates 
  near 
  Grand 
  Eiver. 
  The 
  terraced 
  character 
  

   predomiuates 
  for 
  about 
  4 
  miles 
  northward 
  from 
  the 
  Grand 
  Eiver. 
  

  

  The 
  eastern 
  slope 
  of 
  Troublesome 
  Eidge 
  is 
  well 
  timbered, 
  which 
  is 
  

   particularly 
  the 
  case 
  north 
  of 
  the 
  caiion 
  and 
  up 
  in 
  its 
  higher 
  portions, 
  

   where 
  the 
  ridge 
  connects 
  with 
  the 
  Park 
  Divide. 
  White 
  pines 
  are 
  the 
  

   predominating 
  forest-trees, 
  and 
  they 
  become 
  largely 
  mixed 
  with 
  tremu- 
  

   loides 
  at 
  an 
  elevation 
  below 
  9,000 
  feet. 
  

  

  Troublesome 
  Eidge 
  does 
  not 
  show 
  particularly 
  well-defined 
  peaks, 
  

  

  