﻿20 
  SANTA 
  MA1IIA 
  OIL 
  DISTRICT, 
  CALIFORNIA. 
  

  

  range 
  from 
  gentle 
  to 
  fairly 
  steep, 
  being 
  in 
  many 
  places 
  determined 
  

   by 
  the 
  dip. 
  PL 
  IX, 
  .1 
  (p. 
  80) 
  shows 
  excellent 
  examples 
  of 
  the 
  strike 
  

   ridges, 
  dip 
  slopes, 
  and 
  even 
  sky 
  lines 
  of 
  these 
  hills. 
  The 
  ridges 
  di- 
  

   verging 
  from 
  Mount 
  Lospe 
  are 
  given 
  prominence 
  by 
  the 
  hard 
  flint 
  of 
  

   which 
  they 
  arc 
  formed, 
  and 
  the 
  sharp 
  outlines 
  of 
  the 
  slopes 
  along 
  the 
  

   coast 
  southward 
  from 
  Point 
  Sal 
  are 
  caused 
  by 
  the 
  resistant 
  igneous 
  

   rocks 
  there 
  exposed. 
  

  

  South 
  of 
  the 
  Oasmalia 
  Hills 
  the 
  sea 
  has 
  cut 
  into 
  soft 
  formations 
  

   and 
  along 
  structural 
  lines, 
  so 
  as 
  to 
  leave 
  the 
  Point 
  Sal 
  Ridge 
  jutting 
  

   out 
  as 
  a 
  promontory. 
  The 
  same 
  is 
  true 
  on 
  a 
  smaller 
  scale 
  south 
  of 
  

   Purisima 
  Point, 
  the 
  seaward 
  extension 
  of 
  Burton 
  Mesa, 
  and 
  south 
  

   of 
  the 
  west 
  end 
  of 
  the 
  Santa 
  Ynez 
  Range. 
  The 
  coast 
  north 
  of 
  each 
  of 
  

   these 
  headlands 
  runs 
  northward, 
  with 
  only 
  a 
  gentle 
  curve 
  away 
  from 
  

   the 
  point, 
  until 
  the 
  indentation 
  south 
  of 
  the 
  next 
  range 
  is 
  reached. 
  

   The 
  cast 
  -west 
  coast 
  lines 
  follow 
  structural 
  feature's; 
  the 
  north-south 
  

   lines 
  truncate 
  them. 
  Faults 
  are 
  not 
  concerned 
  in 
  any 
  of 
  the 
  north- 
  

   south 
  features 
  along 
  this 
  part 
  of 
  the 
  coast. 
  

  

  North 
  of 
  the 
  Casmalia 
  Hills 
  the 
  coast 
  forms 
  a 
  straight 
  north-south 
  

   line 
  bordering 
  the 
  lowland 
  that 
  opens 
  out 
  at 
  the 
  mouth 
  of 
  (lie 
  Santa 
  

   Maria 
  Valley 
  as 
  far 
  as 
  the 
  deep 
  indentation 
  at 
  the 
  base 
  of 
  the 
  San 
  

   Luis 
  Range, 
  which 
  exhibits 
  the 
  best 
  example 
  of 
  this 
  type 
  of 
  coastal 
  

   structure. 
  The 
  latter 
  range 
  lies 
  in 
  the 
  San 
  Luis 
  quadrangle 
  and 
  has 
  

   been 
  described 
  in 
  the 
  folio 
  covering 
  that 
  region." 
  

  

  SOLOMON 
  HILL,S. 
  

  

  Although 
  the 
  Casmalia 
  Hills 
  drop 
  into 
  insignificance 
  in 
  the 
  vicinity 
  

   of 
  Graciosa 
  and 
  Harris 
  canyons, 
  their 
  general 
  line 
  of 
  topographic 
  

   relief 
  continues 
  with 
  a 
  more 
  easterly 
  course 
  toward 
  the 
  San 
  Rafael 
  

   Mountains, 
  the 
  whole 
  being 
  in 
  fact 
  a 
  spur 
  of 
  this 
  range. 
  The 
  Solo- 
  

   mon 
  Hills 
  are 
  a 
  group 
  of 
  low, 
  rolling 
  hills 
  covering 
  a 
  wide 
  area 
  between 
  

   the 
  Santa 
  Maria 
  and 
  Los 
  Alamos 
  valleys. 
  From 
  a 
  distance 
  the 
  area 
  

   looks 
  like 
  an 
  undulating 
  plateau 
  sloping 
  away 
  on 
  all 
  sides 
  except 
  the 
  

   east 
  to 
  wide, 
  slightly 
  inclined 
  or 
  flat 
  valleys. 
  

  

  The 
  features 
  of 
  the 
  topography 
  of 
  the 
  Solomon 
  Hills, 
  are 
  shown 
  

   in 
  PI. 
  XI 
  (p. 
  98). 
  From 
  a 
  point 
  near 
  at 
  hand 
  the 
  individual 
  hills 
  

   and 
  valleys 
  of 
  irregular 
  round 
  and 
  square 
  forms 
  assume 
  bold 
  outlines. 
  

   The 
  angular 
  slope 
  of 
  hills 
  capped 
  with 
  low-dipping 
  beds 
  of 
  sand 
  and 
  

   having 
  steep, 
  squarish 
  flanks 
  is 
  very 
  characteristic 
  of 
  the 
  region. 
  

   Many 
  ridges 
  have 
  fairly 
  flat 
  summits, 
  which 
  slope 
  gently, 
  with 
  a 
  long, 
  

   even 
  sky 
  line, 
  and 
  are 
  due 
  to 
  surface 
  cappings 
  of 
  sand 
  hardened 
  by 
  iron 
  

   oxide. 
  Such 
  a 
  capping 
  has 
  in 
  places 
  the 
  appearance 
  of 
  a 
  resistant 
  

   bed 
  forming 
  the 
  ridge 
  top 
  and 
  determining 
  the 
  slope 
  by 
  its 
  low 
  dip. 
  

  

  Mount 
  Solomon 
  has 
  an 
  elevation 
  of 
  1,338 
  feet 
  and 
  other 
  peaks 
  rise 
  

  

  " 
  Q 
  sol 
  >gic 
  Atlas 
  U. 
  S., 
  folio 
  101, 
  U. 
  S. 
  Geol. 
  Survey, 
  1904. 
  

  

  