As large as the database is, there are bound to be errors, often caused by software glitches but also by human error. For a number of years Price Collins collected reports of errors like you have found and posted them in his Data Problems Compendium. There was a software change, and it did not fare well for the forums. Price stopped work on his massive folder about that time. If you click the attachment to that post you can see a placemark for "96444 Lake Minnihaha, Florida water mountain". So the problem still has not been resolved, though many have over time.
We no longer report errors to the Google folks. There is no longer a place to do so. But you find is a good one anyway, and post away here for any others you find.
“Science is an ongoing process. It never ends. There is no single ultimate truth to be achieved, after which all the scientists can retire.” ― Carl Sagan, Cosmos