EPSG

EPSG stands for "European Petroleum Survey Group," but it is commonly used as a code to identify specific coordinate systems and map projections. These systems define how geographic locations are represented on a flat map, ensuring consistent and accurate positioning across different maps and GIS applications. Think of EPSG codes as unique identifiers that specify the exact way a map or spatial data is projected and mapped, facilitating precise location referencing worldwide. This helps geographers, surveyors, and GIS professionals collaborate and share spatial data with confidence that everyone is using the same reference system.