Latitude and longitude bounds of geo positions
GeoBounds[g]
GeoBounds[g, δ]
GeoBounds[g, Scaled[s]]
GeoBounds[Entity["Country", "Brazil"]]
→ {{-14.235004, -14.235004}, {-51.92528, -51.92528}}GeoBounds[{GeoPosition[{0, 0}], $GeoLocation}]
→ {{0., 0.}, {0., 0.}}