See the List of Planitia on Mars
If you follow the above link, and search through the list of plains (or planitia) on the left, you can find Utopia toward the end of the list and find it on the map. Utopia Planitia is, of course, the site of Starfleet's Ship Yards and the birthplace of the USS Enterprise NCC-1701-D.
More precisely this is the location over which the ship yards are in a geosynchronous orbit as explained in the ST:TNG Technical Manual and confirmed by visual evidence from the Voyager episode "Relativity". (This makes me wonder if Earth Station McKinley is in geosynchronous orbit above Mt. McKinley.)
The idea of the Utopia Planitia Ship Yards was introduced during The Next Generation. It was mentioned (and barely shown through a window) in the episode "Booby Trap". Geordi used the
In the seventh season episode "Eye of the Beholder" it is learned that a brutal murder was committed on the
But finally we got to see Utopia Planitia during Voyager's fifth season, and now we can see its name-sake on Google Mars.