Utopia Planitia Fleet Yards

The Utopia Planitia Fleet Yards, or Utopia Planitia Shipyards, is a key Starfleet vessel construction and design facility in the 24th century.

It is partly positioned in synchronous orbit 16,625 kilometers above the Utopia Planitia region on Mars, including the Utopia Planitia Fleet Yard's planetary construction facilities. (TNG: "Parallels", Star Trek: The Next Generation Technical Manual)

The facility includes a number of drydocks and space stations, as well as several large drafting rooms for starship design and the aforementioned planetary facilities. (TNG: "Booby Trap", "Parallels"; VOY: "Relativity")