/*
  cpt-city: usgs/usgs-feet (cpt)

  A land elevation scheme used by the U.S. Geological Survey
  with modified variants by Dr. Richard L. Langford for the
  Geological Survey of Western Australia

  author: U.S. Geological Survey, R. Langford
  copyright: Creative Commons Attribution-NonCommercial 3.0 unported
  year: 2021
  url: https://phillips.shef.ac.uk/pub/cpt-city/usgs
*/
linear-gradient(
  0deg,
  rgb(127, 159, 101)   0.000%,
  rgb(130, 176, 112)   2.500%,
  rgb(160, 194, 124)   5.000%,
  rgb(185, 214, 124)  10.000%,
  rgb(207, 224, 156)  15.000%,
  rgb(223, 233, 168)  20.000%,
  rgb(241, 238, 166)  25.000%,
  rgb(237, 223, 159)  30.000%,
  rgb(240, 210, 141)  35.000%,
  rgb(230, 188, 138)  40.000%,
  rgb(216, 165, 133)  45.000%,
  rgb(197, 149, 135)  50.000%,
  rgb(217, 165, 156)  55.000%,
  rgb(227, 183, 177)  60.000%,
  rgb(223, 192, 191)  65.000%,
  rgb(239, 205, 217)  70.000%,
  rgb(244, 215, 225)  75.000%,
  rgb(243, 223, 233)  80.000%,
  rgb(248, 227, 232)  85.000%,
  rgb(248, 233, 238)  90.000%,
  rgb(246, 240, 245)  95.000%,
  rgb(255, 255, 255) 100.000%
);