anchor.diff:  TAKL,50216S001,Forced Centering,Pillar,-3.2,Reinforced Concrete,2,2001-07-11T00:00:00Z,2007-07-05T00:00:00Z,,
   TAKP,,Forced Centering,Pillar,-1.09,Reinforced Concrete,2,2004-01-14T00:00:00Z,9999-01-01T00:00:00Z,Greywacke,
   TAUP,50217M001,Forced Centering,Pillar,-1.15,Reinforced Concrete,2,2002-03-22T00:00:00Z,9999-01-01T00:00:00Z,Rhyolite,
  -TAUW,,Forced Centering,Wyatt/Agnew Drilled-Braced,0,Stainless Steel Rods,10,2009-01-01T00:00:00Z,9999-01-01T00:00:00Z,,
  +TAUW,,Forced Centering,Wyatt/Agnew Drilled-Braced,-1.436,Stainless Steel Rods,10,2009-01-01T00:00:00Z,9999-01-01T00:00:00Z,,
   TEMA,,Forced Centering,Wyatt/Agnew Drilled-Braced,-1.15,Stainless Steel Rods,10,2007-02-12T00:00:00Z,9999-01-01T00:00:00Z,Greywacke,
   TEN2,,Forced Centering,Steel Mast,0,Stainless Steel Rod,0,2016-11-16T00:00:00Z,9999-01-01T00:00:00Z,Greywacke,
   TENN,,Forced Centering,Wyatt/Agnew Drilled-Braced,-1.61,Stainless Steel Rods,10,2017-03-10T00:00:00Z,9999-01-01T00:00:00Z,Greywacke,
  
positive.code: DURV,,Forced Centering,Pillar,-999,Reinforced Concrete,2,2005-03-09T00:00:00Z,9999-01-01T00:00:00Z,,"Mapped As Ymm, Permian Serpentinite, Dunite, Peridotite."
  FALE,50601S001,Forced Centering,Pillar,-2,Reinforced Concrete,2,1999-01-01T00:00:00Z,9999-01-01T00:00:00Z,,
  FOX1,,Unmarked Mark,Unknown,0,Reinforced Concrete,0,2019-02-05T00:00:00Z,9999-01-01T00:00:00Z,,concrete block on fast moving 10cm/day landslide
  FRTN,,Forced Centering,Wyatt/Agnew Drilled-Braced,0,Stainless Steel Rods,10,2011-01-01T00:00:00Z,9999-01-01T00:00:00Z,Sandstone,
  GDS1,,Unmarked Mark,Unknown,-0.872,Unknown,0,2016-11-16T00:00:00Z,2018-01-16T00:00:00Z,,
  GISB,50223M001,Forced Centering,Pillar,-1.225,Reinforced Concrete,2,2002-05-14T00:00:00Z,9999-01-01T00:00:00Z,Sandstone,
  GLDB,50230M001,Forced Centering,Pillar,-1.325,Reinforced Concrete,2,2004-01-14T00:00:00Z,9999-01-01T00:00:00Z,Schist,
  
negative.code: MAHA,,Forced Centering,Wyatt/Agnew Drilled-Braced,-1.44,Stainless Steel Rods,10,2009-11-16T00:00:00Z,9999-01-01T00:00:00Z,Schist,
  MAHI,,Forced Centering,Wyatt/Agnew Drilled-Braced,-1.5,Stainless Steel Rods,10,2007-02-20T00:00:00Z,9999-01-01T00:00:00Z,Limestone,
  MAHO,50229M001,Forced Centering,Pillar,-1.185,Reinforced Concrete,2,2004-02-29T00:00:00Z,9999-01-01T00:00:00Z,Limestone,
  MAKO,,Forced Centering,Wyatt/Agnew Drilled-Braced,-1.49,Stainless Steel Rods,10,2010-01-01T00:00:00Z,9999-01-01T00:00:00Z,,
  MANG,,Forced Centering,Pillar,-1.395,Reinforced Concrete,2,2005-02-03T00:00:00Z,9999-01-01T00:00:00Z,Greywacke,
  MAST,50220M001,Forced Centering,Pillar,-1.45,Reinforced Concrete,2,2002-12-19T00:00:00Z,2016-06-08T00:00:00Z,Sandstone,
  MATW,,Forced Centering,Pillar,-1.38,Reinforced Concrete,2,2004-04-09T00:00:00Z,9999-01-01T00:00:00Z,Sandstone,
  MAVL,50235M001,Forced Centering,Pillar,-1.2,Reinforced Concrete,2,2004-05-17T00:00:00Z,9999-01-01T00:00:00Z,Basalt,
  MCNL,,Forced Centering,Wyatt/Agnew Drilled-Braced,-1.507,Stainless Steel Rods,10,2008-05-27T00:00:00Z,9999-01-01T00:00:00Z,Sandstone,
  METH,50251M001,Forced Centering,Wyatt/Agnew Drilled-Braced,-1.56,Stainless Steel Rods,6,2010-08-01T00:00:00Z,9999-01-01T00:00:00Z,,
  MING,,Forced Centering,Wyatt/Agnew Drilled-Braced,-1.54,Stainless Steel Rods,10,2010-04-28T00:00:00Z,9999-01-01T00:00:00Z,,
  MKNO,,Forced Centering,Wyatt/Agnew Drilled-Braced,-1.551,Stainless Steel Rods,10,2011-05-11T00:00:00Z,9999-01-01T00:00:00Z,,
  