How to remove Google Maps bookmarks
If you have a Google account, you can save and edit the maps you create on Google Maps. One way to edit a map is to add a marker. This is useful if you want to mark a place you plan to visit. If you want to remove a bookmark that you have added to a Google map, doing so requires only a few clicks of the mouse.
Login to your Google account and click on “Maps” from the menu at the top of the page.
Click on “My Maps” to see the map from which you want to remove the marker. A list of your saved maps will open.
Click on the title of the map you want to edit; the map will open.
Click on the “Edit” button located above the map name. You can remove the markers here.
Click on the bookmark you want to delete from Google Maps. A box will appear, giving you the option to change the name and details of the bookmark, move it or delete it.
Click on “Delete” to remove the marker from your map. The marker will be removed. Press the “Done” button located above the map name to close the editing options.