• South African Survey Grid zone 25

  EPSG:17525
  Area of use: South Africa - onshore between 24°E and 26°E.
  

• South African Survey Grid zone 31

  EPSG:17531
  Area of use: South Africa - onshore between 30°E and 32°E. Eswatini (Swaziland).
  

• South African Survey Grid zone 27

  EPSG:17527
  Area of use: Lesotho - west of 28°E. South Africa - onshore between 26°E and 28°E.
  

• South African Survey Grid zone 29

  EPSG:17529
  Area of use: Lesotho - east of 28°E. South Africa - onshore between 28°E and 30°E.
  

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