Black mountain
The black mountain was, according to Shaxs, a "spiritual battleground" where the soul went after death. There they must fight three faceless apparitions of their father, after which the surviving father makes them eat their heart.

In 2381, a resurrected Shaxs described his experience at the black mountain to Ensign Sam Rutherford. ()

In 2382, when Steve Stevens was brain dead for ten minutes from being turned to  by a psychic mine on Jengus IV, he saw "a koala sitting on a black mount[ain]." ()

Mythological locations