The [**EPSG Geodetic Parameter Dataset**](https://epsg.io/) is a public registry of geodetic datums, [[Spatial Reference System|spatial reference systems]], Earth ellipsoids, coordinate transformations and related units of measurement. There are several resources to access the repository: - [Spatial Reference website](https://spatialreference.org/) - [EPSG browser by MapTiler](https://epsg.io) - [Official EPSG website](https://epsg.org/home.html)