Use this trick to see a map of everywhere Google knows you've been

If you have a Gmail account or use any of Google's apps, there's a good chance Google has some of your location data stored in its systems.

 Luckily, there's an easy way to see exactly what Google knows about where you've been, and you can even see a map of past locations you have visited.

This all depends on whether you have enabled two settings tied to your Google account: location reporting and location history. Of course Google lets you turn these settings off at any time, and it even offers step-by-step instructions.

But you're interested in seeing what has already been recorded.

First, sign in to whichever Gmail or Google account you use the most.

Then head on over to this little-known Google Maps website, where you'll be greeted by a screen like this.

You could see some data points pop up immediately, or you might see nothing; it all depends on if and when your phone recorded your location for apps like Google Maps.

The easiest way to thoroughly search your location history is to change the "Show" ticker from 1 Day to 30 Days, which will let you see all of your location data by the month. You can then work backward by the month until you start to see the red data points and lines pop up.

Here, for example, you can see all the places I walked around my college campus last May. Because I used Google Maps during my move to New York, I can see my exact trip:

You can also toggle between a traditional map and satellite view:

If you still can't find anything, don't worry - it just means that you probably haven't authorized Google or any of its apps to report and record your location.

You'll notice that Google offers a quick way to "Delete all history" or to "Delete history from this time period," so you can eliminate or alter your location history accordingly.

And remember, if you want to turn off location reporting and location history from your Google account and apps, you can follow the official instructions over here.