Lathellia

Lathellia has a planet used within Section: Stargate Role plays - Stargate SG1.

Descriptions
P3X-210, a hot, volcanic planet, unremarkable in the extreme. Which was just the place the Ancients were looking for when they constructed this compound. One of the last great works of their civilization before they Ascended, the Alterans put their technological mastery to work, hollowing out one of the planets many volcanoes, and building a highly advanced facility within. Powered by geothermal energy, protected by an impressive array of defenses, and containing many feats of technology within, this compound was abandoned and left by the Ancients when they ascended, with the knowledge that some day it would be found, and the secrets within would be used by whomever discovered it to combat the threats the Ancients could not defeat. For some, like Merlin, could see a time when it would be needed, and they would not abandon their successors to the whims of fate. And so it has laid dormant. Waiting to be found and returned to life, once again.