The documentation page of geolocation API is still accessible through https://facebook.github.io/react-native/docs/geolocation. Even after in the source (geolocation.md) is removed months ago.
I'm not sure why the live website is not yet updated to reflect the current source. This is causing some confusion for developers, since when we google using keyword react native geolocation api the particular page will showing up as first result.
I suggest to update the live website.