You’ve used Google maps excellent editing tools to create a boundary on your map but now you want to export it into another mapping package.
Google maps use KML files for importing but there is no obvious exporting option.
To achieve this open your map in My Maps and then select the Link button – next to the Printer button.
Right click the URL and select copy.
Open up a new browser tab and right click the address bar and select paste but don’t hit enter.
Look for the parameter ‘&output=’ – if it does not exist add it to the end of the URL after all the other parameters. Either change or set it to equal ‘kml’ i.e. &output=kml
Hit enter – you will now be prompted to open or save as. Choose save and you can now download to a KML file locally.
IslandEarth 