The Qu'Vat Colony was a Klingon outpost, active during the mid-22nd century. The planet hosting the colony had three population centers, one on the northern continent, and two in the southern hemisphere. Its population was estimated by Starfleet to be several million Klingons, mostly in the southern hemisphere.
In 2154, a group of Human Augments led by Malik attempted to deploy biogenic weapons above the colony's southern hemisphere to incite war between the Klingon Empire and Earth. Their attempt was thwarted by Enterprise NX-01, resulting in the destruction of the Augments' stolen Bird-of-Prey in orbit of the colony. (ENT: "The Augments")
Unbeknownst the crew of Enterprise, several Augment embryos survived the battle and were retrieved by the Klingon government. Over the next few months, a Klingon scientist named Antaak studied and replicated the altered DNA, creating Klingon Augments and unwittingly unleashing a lethal airborne plague throughout the Empire. To combat the illness, the Klingon government actively sought a cure on Qu'Vat, even kidnapping Denobulan Doctor Phlox and bringing him to the colony. As a cure was being sought, Klingon Admiral Krell, in league with Earth's Section 31, sent a fleet of warships to destroy the colony and prevent further exposure to the virus. A battle, however, ensued in orbit, between the Klingon vessels and Enterprise and its sister ship, Columbia. Finally a treatment was discovered and a stalemate drawn between Klingon and Earth forces, saving Qu'Vat Colony from destruction. (ENT: "Affliction", "Divergence")
Background information Edit
In the script of "The Augments", this planet was described as having a "blue-green" coloration.
The planet's coastline when visible from orbit is actually taken from Earth's eastern Aegean Sea, including the islands of Lesbos and Xios. The computer display of the planet shows a map similar to a large part of Earth, with clear parallels to the Indian subcontinent, the Arabian Peninsula, the Black Sea, the Caspian Sea and Northeast Africa.
According to Star Trek: Star Charts (p. 63) and Stellar Cartography: The Starfleet Reference Library ("Stellar Cartography" p. 30; "Federation Historical Highlights, 2161-2385"), the Qu'Vat Colony was located in the Qu'Vat system (β). This system was located in the Beta Quadrant. The primary was a K-class star. According to a map of the Klingon Empire – prepared by the Scribe K'Tark for the Klingon High Council in the Year of Kahless 893 (2366} – Qu'Vat was identified as a Klingon system.