How to Find Corner Pins

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  • Coordinates trump vector measurements [1]
  • Use a metal detector [2]
  • Metal detector, GPS, compass [3]. But - they may be removed in which a surveyor will likely need to mark it.
  • Why does a survey cost so much? [4]
  • Resolution of satellites is 28 cm in the USA. Google maps resolution appears to be higher because it is aerial photos. [5]. Google Earth is 15m to 15 cm resolution [6]
  • GPS is 6 foot accuracy [7]