If you have looked in a folder that contains data or boundary files created by Strater or other Golden Software programs, you may have noticed files with a .GSR2 extension in the folder. These Golden Software Reference files are created when you save a projected file from Strater. For example, if you create a map, assign a Coordinate System, when you export the map to some file formats, such as TIF, you will see both the filename.tif and filename.tif.gsr2 in the directory.
The Golden Software Reference files contain the projection settings used to project the data in Golden Software programs. Projection, datum, and georeference information are stored in the .GSR2 file. When you create a map from a file that has an associated .GSR2 file in Strater, the projection information is used when displaying the map. If the Golden Software Reference file is deleted, the boundary can be imported but it will not be projected properly.
Strater .SDG file format retains all of the information in a map, including projection information.
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