An apparently abandoned Delta Quadrant mining colony whose survivors, the Sakari, live hidden underground after a devastating attack, visited by Voyager in search of gallicite in the episode Blood Fever.
The Sakari colony lies on a Delta Quadrant planet rich in gallicite, a mineral Voyager needs to refit its warp coils. In the episode Blood Fever, set in 2373, the surface settlement appears to have been deserted for decades.
An away team climbing down into the old mine workings discovers that the Sakari are still there. After invaders all but wiped out their colony, the survivors moved below ground and disguised every trace of their presence. The visit is complicated by Ensign Vorik's pon farr, which has been passed on to B'Elanna Torres.
Chakotay wins the Sakari's trust by offering to help them improve their camouflage in exchange for gallicite. In the final scene he finds the remains of one of the invaders in the ruins: a Borg drone, the first sign that Voyager is nearing Borg space.