﻿18 
  SANTA 
  MAiMA 
  olL 
  DISTRICT, 
  CALIFORNIA. 
  

  

  B 
  LNTA 
  YNKX 
  .Moi'N 
  rTAINS. 
  

  

  The 
  Santa 
  Ynez 
  Mountains 
  form 
  a 
  long, 
  narrow 
  range 
  bordering 
  

   the 
  Santa 
  Barbara 
  Channel 
  and 
  hounded 
  on 
  the 
  north 
  by 
  the 
  westward 
  

   flowing 
  Santa 
  Ynez 
  River. 
  The 
  trend 
  of 
  the 
  range 
  is 
  east 
  and 
  wot 
  

   and 
  has 
  determined 
  the 
  unusual 
  direction 
  taken 
  by 
  the 
  coast 
  south 
  

   of 
  it. 
  The 
  range 
  is 
  about 
  9 
  miles 
  in 
  average 
  width 
  and 
  contains 
  two 
  

   lengthwise 
  zones. 
  The 
  southern 
  zone 
  comprises 
  a 
  ridge 
  with 
  remark- 
  

   ably 
  even 
  sky 
  Line, 
  which 
  rises 
  directly 
  from 
  the 
  sea. 
  This 
  ridge 
  

   increases 
  in 
  height 
  toward 
  the 
  east 
  from 
  an 
  elevation 
  of 
  1,000 
  feet 
  

   at 
  Point 
  Conception 
  to 
  3,800 
  feet 
  east 
  of 
  Refugio 
  Pass 
  and 
  more 
  

   beyond 
  t 
  lie 
  boundary 
  of 
  the 
  area 
  mapped. 
  At 
  Point 
  Conception 
  

   the 
  coast 
  bends 
  abruptly 
  to 
  the 
  northwest 
  around 
  the 
  end 
  of 
  this 
  

   ridge, 
  but 
  north 
  of 
  Jalama 
  Creek 
  a 
  similar 
  ridge, 
  that 
  of 
  the 
  mountain 
  

   Rl 
  Tranquillon, 
  follows 
  the 
  coast 
  as 
  far 
  as 
  Point 
  Arguello, 
  where 
  the 
  

   shore 
  bends 
  again 
  abruptly 
  and 
  assumes 
  a 
  northward 
  course. 
  The 
  

   second 
  zone 
  lies 
  between 
  these 
  two 
  coast 
  ridges 
  and 
  Santa 
  Ynez 
  

   River. 
  It 
  has 
  more 
  the 
  nature 
  of 
  a 
  foothill 
  region, 
  forming 
  a 
  partly 
  

   individual 
  range 
  of 
  hills 
  and 
  ridges 
  separated 
  from 
  the 
  coastal 
  ridge 
  

   by 
  longitudinal 
  valleys. 
  The 
  average 
  slope 
  from 
  the 
  summit 
  of 
  the 
  

   range 
  down 
  to 
  the 
  sea 
  is 
  at 
  an 
  angle 
  of 
  20° 
  to 
  30°. 
  In 
  places 
  the 
  

   angle 
  is 
  less, 
  but 
  on 
  some 
  individual 
  slopes 
  it 
  is 
  greater. 
  The 
  width 
  

   of 
  the 
  range 
  on 
  the 
  north 
  of 
  the 
  summit 
  ridge 
  is 
  greater 
  and 
  the 
  slope 
  

   more 
  gentle 
  and 
  more 
  broken 
  than 
  on 
  the 
  southern 
  abrupt 
  slope 
  to 
  

   the 
  sea. 
  Viewed 
  from 
  the 
  ocean 
  on 
  the 
  south 
  the 
  range 
  has 
  the 
  

   appearance 
  of 
  a 
  steep, 
  even-topped 
  breastwork; 
  from 
  the 
  north 
  it 
  

   appears 
  as 
  a 
  belt 
  of 
  discontinuous 
  hills 
  and 
  ridges 
  grouped 
  in 
  front 
  

   of 
  and 
  almost 
  hiding 
  the 
  long 
  culminating 
  ridge. 
  The 
  Santa 
  Ynez 
  

   Range 
  forms 
  the 
  most 
  prominent 
  elbow 
  on 
  the 
  California 
  coast. 
  

  

  The 
  topography 
  of 
  this 
  range 
  reflects 
  the 
  structure 
  more 
  than 
  

   does 
  that 
  of 
  the 
  San 
  Rafael 
  Mountains, 
  and 
  deformation 
  within 
  it 
  

   does 
  not 
  appear 
  to 
  have 
  gone 
  so 
  far. 
  

  

  In 
  the 
  high 
  mountainous 
  region 
  east 
  of 
  the 
  area 
  mapped, 
  north 
  

   of 
  Santa 
  Barbara 
  and 
  south 
  of 
  the 
  south 
  end 
  of 
  the 
  great 
  central 
  

   valley 
  of 
  California, 
  centering 
  at 
  Mount 
  Pinos, 
  lies 
  the 
  point 
  of 
  con- 
  

   vergence 
  of 
  all 
  the 
  ranges 
  of 
  mountains 
  in 
  this 
  part 
  of 
  California 
  — 
  

   the 
  Santa 
  Ynez 
  Range 
  coming 
  in 
  from 
  the 
  west; 
  the 
  San 
  Rafael 
  

   Range 
  from 
  the 
  northwest; 
  the 
  Santa 
  Lucia 
  and 
  San 
  Jose 
  ranges 
  

   from 
  the 
  country 
  north 
  of 
  Cuyama 
  River; 
  the 
  Mount 
  Diablo 
  Range, 
  

   or 
  easternmost 
  member 
  of 
  the 
  Coast 
  Ranges, 
  from 
  still 
  farther 
  north 
  

   of 
  west; 
  the 
  Tehachapi 
  Range, 
  running 
  southwestward 
  from 
  the 
  

   south 
  end 
  of 
  the 
  Sierra 
  Nevada; 
  and 
  the 
  San 
  Gabriel 
  Range, 
  which 
  

   comes 
  from 
  the 
  southeast 
  as 
  the 
  continuation 
  of 
  the 
  Coast 
  Ranges 
  

   in 
  southern 
  California. 
  Here 
  the 
  northwest-southeast 
  lines 
  of 
  

   structure, 
  dominant 
  throughout 
  the 
  major 
  part 
  of 
  the 
  State, 
  are 
  met 
  

  

  