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The files in this directory are support data for PROJ programs.
File Contents:
README --- This file
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
Additional data files are available in https://github.com/OSGeo/PROJ-data
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