SHORT DEFINITIONS:  Map Projection or Grid System Parameters

Geographic = Equidistant un-projected lines of longitude and latitude representing degrees of arc surrounding the globe.
UTM = Universal Transverse Mercator
SPCS = State Plane Co-ordinate System

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If your Area of Interest (AOI) co-ordinates are not in Geographic, UTM, or SPCS, please provide the following map projection parameters in the comments box.

GeoVAR