Alternate timeline
(covers information from an alternate timeline)
Iadara Colony

Iadara colony as seen from space in 2370

Iadara colony was a Federation colony inhabited during the late 24th century.

In an alternate reality visited by Worf in 2370, Iadara colony was responsible for new starship developments and the object of covert surveillance by the Cardassians along with Starbase 47, the Deep Space 5 and the Utopia Planitia Fleet Yards. (TNG: "Parallels")

The image of the colony was a painting by scenic artist Anthony Fredrickson.
According to Star Trek: Star Charts (p. 47, "United Federation of Planets I", "United Federation of Planets III") and Stellar Cartography: The Starfleet Reference Library ("Stellar Cartography", pp. 18-19; "Federation Historical Highlights, 2161-2385"), "), there was a star system named Iadara, in which this colony might possibly have been located, in the Alpha Quadrant. The system's primary was a K-class star. In 2378, this colony was listed as a Federation member.