Utopia Colony
Utopia Colony is a Human settlement established at Utopia Planitia on the planet Mars sometime prior to the 2150s and most likely part of the Martian Colonies. In 2155, when a xenophobic faction of Humans known as Terra Prime took over the Verteron Array, Starfleet intended to destroy the array rather than let the terrorist organization carry out their attack on San Francisco. Destroying the array threatened to destroy a portion of Utopia colony, an indication that the two were in close proximity to one another. The colony had at least one hospital as of 2155. (ENT: "Demons", "Terra Prime")
By 2313, Utopia colony could boast a population of nearly one million people. The city is considered the most prosperous on the planet and is directly linked to the Utopia Planitia Shipyards. During the Federation Civil War the colony was damaged by the attack against the Mars Defense Perimeter by ships of the 52nd Fleet.