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NTV2 Grid Shift File

Updated May 12, 2016

This article applies to:
  • Terrain 3D
  • Terrain Forestry
  • RoadEng Civil
  • RoadEng Forestry

Grid Shift Files

Datum conversions are possible using grid shift files. For Canadian transformations, use the NTv2 grid shift file. For transformations on the continental US, use the NADCON grid shift files.

1) Download the grid shift file ( to the program parameters folder: (last folder will vary with product)


2) Unzip the file.