﻿412 
  REPORT 
  UNITED 
  STATES 
  GEOLOGICAL 
  SURVEY. 
  

  

  "lying 
  on 
  the 
  west 
  of 
  Tarryall 
  Eiver," 
  that 
  the 
  Tarryall 
  Eange 
  does 
  

   not 
  form 
  the 
  greater 
  half 
  of 
  the 
  eastern 
  border 
  of 
  the 
  South 
  Park. 
  

  

  Tarryall 
  Eange 
  connects 
  with 
  the 
  Kanosha 
  Eange 
  by 
  a 
  saddle, 
  from 
  

   which, 
  on 
  the 
  northwest 
  side, 
  Eock 
  Creek 
  originates, 
  and 
  on 
  the 
  southeast 
  

   side 
  Lost 
  Park 
  Creek. 
  One 
  of 
  the 
  peaks, 
  Upper 
  Tarryall 
  Peak, 
  stand- 
  

   ing 
  at 
  the 
  very 
  point 
  of 
  its 
  beginning 
  right 
  above 
  Eock 
  Creek 
  saddle, 
  

   reaches 
  an 
  altitude 
  just 
  a 
  trifle 
  above 
  timber-line 
  11,750 
  feet. 
  From 
  

   here 
  the 
  crest 
  of 
  the 
  range 
  bears 
  a 
  tolerably 
  straight 
  course 
  for 
  G 
  miles, 
  

   exhibiting 
  on 
  its 
  way 
  several 
  lofty 
  peaks. 
  On 
  the 
  west, 
  the 
  slopes 
  im- 
  

   mediately 
  below 
  the 
  crest 
  fall 
  off 
  steeply 
  with 
  rugged 
  offsets 
  and 
  deep- 
  

   carved 
  drainage-fissures, 
  which 
  at 
  the 
  middle 
  i^arts 
  of 
  the 
  slopes 
  are 
  

   already 
  moderate, 
  and 
  become 
  still 
  more 
  so 
  as 
  they 
  descend 
  toward 
  the 
  

   Tarryall 
  Valley. 
  

  

  The 
  eastern 
  slopes 
  fronting 
  the 
  mountain-valley 
  of 
  Lost 
  Park 
  are 
  less 
  

   rugged 
  from 
  the 
  very 
  beginning, 
  and 
  we 
  can 
  witness 
  grassy 
  willow-iiats, 
  

   where 
  the 
  creeks 
  have 
  their 
  sources, 
  in 
  the 
  highest 
  parts 
  of 
  the 
  moun- 
  

   tain 
  and 
  but 
  few 
  hundred 
  feet 
  beneath 
  the 
  crest. 
  The 
  slopes 
  are 
  long, 
  

   " 
  with 
  an 
  occasional 
  offset," 
  and 
  well 
  timbered 
  down 
  into 
  the 
  Lost 
  Park 
  

   Valley. 
  

  

  At 
  about 
  5 
  miles 
  southeast 
  of 
  Upper 
  Tarryall 
  Creek 
  the 
  range 
  as- 
  

   sumes 
  a 
  bolder 
  form, 
  and 
  it 
  makes 
  first 
  a 
  gradual 
  and 
  then 
  a 
  sharp 
  bend 
  

   to 
  the 
  east. 
  It 
  slopes 
  toward 
  the 
  Tarryall 
  Eiver, 
  becomes 
  rough, 
  and 
  

   steeper 
  all 
  the 
  way 
  down, 
  to 
  the 
  valley 
  bottom. 
  Here 
  sharp 
  offsets 
  and 
  

   narrow- 
  crested 
  spurs 
  multiply 
  in 
  number. 
  At 
  the 
  end 
  of 
  the 
  first 
  bend 
  

   stands 
  the 
  highest 
  mountain 
  in 
  the 
  range, 
  " 
  Bison 
  Peak," 
  12,400 
  feet. 
  

   ]t 
  exhibits 
  indeed 
  a 
  dignified 
  appearance, 
  crowned 
  with 
  a 
  copping 
  of 
  

   huge 
  granite 
  blocks 
  which 
  seem 
  from 
  the 
  distance 
  like 
  the 
  remnants 
  of 
  

   giant 
  fortifications. 
  Toward 
  the 
  Lost 
  Park 
  this 
  peak 
  throws 
  out 
  the 
  

   most 
  rugged 
  spurs 
  imaginable, 
  one 
  of 
  them 
  reaching 
  as 
  far 
  as 
  2 
  miles 
  

   from 
  the 
  center 
  of 
  the 
  peak. 
  

  

  From 
  Bison 
  Peak 
  the 
  crest 
  swings 
  around 
  again 
  toward 
  the 
  south- 
  

   east, 
  and 
  from 
  here 
  the 
  boldest 
  of 
  mountain 
  features 
  have 
  their 
  begin- 
  

   ning, 
  and 
  remain 
  so 
  to 
  the 
  end 
  of 
  the 
  range. 
  The 
  mountains 
  seem 
  to 
  

   become 
  a 
  confused 
  mass 
  of 
  larger 
  and 
  smaller 
  peaks 
  ; 
  sharp 
  spurs 
  

   crowd 
  each 
  other, 
  and 
  the 
  almost 
  vertical-appearing 
  walls 
  permit 
  here 
  

   no 
  ascension 
  from 
  the 
  valley 
  to 
  the 
  top 
  of 
  the 
  range. 
  

  

  The 
  slopes 
  toward 
  the 
  east 
  are 
  chopped 
  by 
  erosion 
  into 
  cliffy 
  caSons, 
  

   which 
  are 
  only 
  latteral 
  caiions 
  to 
  the 
  main 
  one, 
  in 
  which 
  the 
  Lost 
  Park 
  

   waters 
  roar 
  and 
  tumble 
  for 
  6 
  miles 
  until 
  the 
  Platte 
  is 
  reached. 
  

  

  Opposite 
  the 
  Lost 
  Park 
  canon 
  rises 
  another 
  barren 
  and 
  rugged 
  gran- 
  

   ite 
  ridge, 
  which, 
  though 
  less 
  high, 
  forms 
  also 
  a 
  conglomerate 
  of 
  peaks, 
  

   spurs, 
  pulpits, 
  and 
  rocky 
  noses. 
  Near 
  the 
  lower 
  end 
  of 
  his 
  range 
  stand 
  

   many 
  imposing 
  and 
  sharp 
  peaks, 
  the 
  like 
  of 
  which 
  we 
  are 
  only 
  able 
  to 
  

   find 
  in 
  certain 
  portions 
  of 
  the 
  Park 
  Eange. 
  

  

  There 
  are 
  to 
  the 
  northwest 
  of 
  Bison 
  Peak 
  thirteen 
  peaks, 
  with 
  an 
  

   average 
  height 
  of 
  11,400 
  feet 
  and 
  a 
  mean 
  saddle-elevation 
  of 
  10,800 
  

   feet. 
  

  

  Southeast 
  of 
  Bison 
  Peak 
  stand 
  nineteen 
  peaks, 
  with 
  a 
  mean 
  height 
  of 
  

   11,750 
  feet. 
  Seven 
  peaks 
  reach 
  over 
  12,000 
  feet; 
  and 
  besides 
  the 
  above 
  

   there 
  are 
  as 
  many 
  as 
  fifteen 
  peaks 
  resting 
  on 
  side 
  spurs 
  on 
  the 
  south- 
  

   east 
  part 
  of 
  the 
  range. 
  

  

  THE 
  PUMA 
  HILLS 
  AND 
  ADJACENT 
  BASALTIC 
  HILLS 
  SOUTH. 
  — 
  EANGE 
  

  

  OF 
  SECOND 
  ORDER. 
  

  

  Detached 
  from 
  the 
  Tarryall 
  Eange 
  and 
  separated 
  by 
  the 
  Canon 
  Valley 
  

   of 
  the 
  Tarryall 
  Creek 
  lie 
  the 
  Puma 
  Hills, 
  which 
  constitute 
  at 
  least 
  one- 
  

  

  