anchor.diff:  67.3,-137.8,MhVf-1,Bell Mouth,1
   0.0,0.0,MiPq-1a,0,1
   0.0,0.0,MiRh-12,0,1
  -,,MiRi-1,Herton Lake/ Great Bear Lake I,1
  -,,MiRi-3,Herton Lake/ Great Bear Lake III,1
  +0.0,0.0,MiRi-1,Herton Lake/ Great Bear Lake I,1
  +0.0,0.0,MiRi-3,Herton Lake/ Great Bear Lake III,1
   0.0,0.0,MjVg-8,0,1
   67.6,-139.6,MjVk-7,Old Chief Creek,1
   0.0,0.0,MjVl-6 (?),0,1
  
positive.code: 67.7,-115.4,MkPk-12,0,1
  67.7,-115.4,MkPk-4,0,1
  67.8,-115.3,MkPk-9,Willowherb,1
  ,,MMPP-1,MmPp-1,1
  0.0,0.0,MyPy-1,0,1
  ,,NfTn-2,0,1
  0.0,0.0,NhJp-4,0,1
  0.0,0.0,NhPf-0?,0,1
  0.0,0.0,NhTr-1,0,1
  0.0,0.0,NiHf-1,0,1
  0.0,0.0,NiJq-15,0,1
  ,,NiTr-2,0,1
  0.0,0.0,NkRh-1,0,1
  ,,NkRh-8,0,1
  0.0,0.0,NkRj-3,0,1
  0.0,0.0,NkRo-2,0,1
  0.0,0.0,NkTc-5,0,1
  
negative.code: 65.4,-114.2,LiPg-14,0,1
  65.4,-114.3,LiPh-11,0,1
  65.5,-114.5,LiPh-5,0,1
  0.0,0.0,MaRm-1,Great Bear Lake I,1
  66.7,-117.7,MdPr-1,Great Bear Lake II,1
  66.6,-118.0,MdPs-22,0,1
  66.6,-118.1,MdPs-31,0,1
  