The files in this directory are support data for PROJ programs.

File Contents:

README  --- This file

epsg    --- Translation of EPSG GCS/PCS codes into PROJ via init= mechanism.

epsg-deprecated --- EPSG definitions that have been deprecated. They are
                not part of 'epsg' anymore, but may have been delivered
		with earlier versions of 'epsg'.
		Thus, they might occur e.g. in WMS (Web Mapping Services)
		running with old EPSG definitions.
		This file is not complete at all - it contains just
		definitions that were individually reported.

nad27   --- North American Datum 1927 for "init=" definition of
			State Plane Coordinate Systems (SPCS).

nad83   --- North American Datum 1983 for "init=" definition of SPCS.

GL27    --- Great Lakes Survey grids, NAD27

world   --- Proj specifications for several international grid systems.

nad.lst --- Reference list of SPCS States and NGS datum identifiers

IGNF    --- Translation of French Mapping Agency codes into PROJ via init= mechanism.

install     --- Unix shell (sh) script to install proj init files.
				Read beginning for usage instructions.

Additional data files are available in https://github.com/OSGeo/proj-datumgrid/