The Martian colonies are one of the oldest colonies of humankind and were established in 2103 on planet Mars. Among the pioneers who settled the first colony were some of Jean-Luc Picard's ancestors.(Star Trek: Generations, DS9: "In the Cards")
In 2105, a serial murderer killed eight women at the Martian colonies. TOS: "Wolf in the Fold")
Known citizens include Lieutenant Mira Romaine, crewmember of the USS Enterprise (NCC-1701) who was born at Martian colony 3 and Simon Tarses, crewmember of the USS Enterprise (NCC-1701-D). (TOS: "The Lights of Zetar", TNG: "The Drumhead)
The Fundamental Declarations of the Martian colonies were an important step in the pursuit of individual rights. (TOS: "Court Martial")
A Mars station as it is simulated in Ltd. Paris' holodeck program on the USS Voyager.