The Loneel Mountains were a range of dormant volcanos on the planet Betazed. Ancient volcanic activity created a network of tunnels and caves throughout the mountains, which also contained high concentrations of sensor-blocking fistrium.

The Betazed government constructed emergency shelters within the Loneel Mountains, and evacuees were taken to these shelters in the immediate aftermath of the Dominion attack on Betazed in 2374. The Loneel Mountains housed 1500 Betazoids during the occupation, and served as a base of operations for the Betazed resistance. (TNG novel: The Battle of Betazed; ST short story: "The Ceremony of Innocence is Drowned")

the planet Betazed
Cities and settlements CondarMedaraRixxDalariaArarMelfiDekoaIscandar UFP emblem image.
Geographic features TharazadKharazadHedeyaDalarArandelThalzedSemizadLoneel ValleyValley of SongJalara jungleHedayan ArchipelagoKhara ArchipelagoLoneel MountainsMount TraxanaxanosVeliko MountainsVathax MountainsCataran MountainsAzure Peaks
Landmarks and institutions: Amick HallDalaria SpaceportEnaren UniversityJanaran FallsPlaza of ContemplationUniversity of BetazedYloTrap
Bodies of water Alarmante SeaBacarba LakeGreat WhirlpoolIndar OceanLake CatariaLake El-NarOpal SeaThaxan Ocean
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