Mantilles was the inhabited second planet in the Pallas 14 system. The planet was affiliated with the United Federation of Planets.
stardate 5371, a Federation colony was established on this planet. It was the most remote inhabited planet in the Federation, lying at the outer fringe of the galaxy. Mantilles was home to 82 million people, and was governed by retired Starfleet commodore Bob Wesley.
In 2269, the position and
orbital path of Mantilles was illustrated on a system map displayed on the main viewscreen of the USS Enterprise bridge.
Mantilles came under threat by an unknown
cosmic cloud creature. Governor Wesley's attitude prevented planet-wide panic, and five thousand children were successfully evacuated before the cloud reached the planet. The crew of the Enterprise managed to stop the creature before it consumed Mantilles. ( : " TAS ")
One of Our Planets Is Missing
2293, the location of Mantilles in the Milky Way Galaxy was labeled in a star chart that was in Captain James T. Kirk's quarters aboard the USS . ( Enterprise-A , Star Trek VI: The Undiscovered Country production art)
, Mantilles became the 25th Federation member in Star Trek Maps 2248.
("United Federation of Planets I"), Mantilles was listed as a member planet of the Federation in Star Trek: Star Charts 2378.
Mantilles was featured in the
novelization of "One of Our Planets Is Missing" in and mentioned in the novelization of Star Trek Log 1 : " TAS " in The Lorelei Signal .
Star Trek Log 2
According to the
Pocket TOS novel Wesley's assignment there was due to fears of Allegiance in Exile Tholian espionage.
FASA named a ship after this world, the USS Mantilles ( Federation Ship Recognition Manual ).