If you want to make detailed location (latitude and longitude) to publish as opendata, you must clear the license.
You can't get that from Google Maps.
LatLngMap I created is one of methods to make that.
It's using "maps.gsi.go.jp (地理院地図)" map service published from Japan as opendata.
"LatLngMap" shows latitude and longitude simply
How beautiful Azelea (Tsutsuji) flowers at Nishiyama park in Sabae city are!
"Information Access Division, Geospatial Information Authority of Japan"