A frozen and remote region of Andoria beneath which the Aenar, a blind telepathic Andorian subspecies, live in an underground city visited by Archer and Shran in 2154.
The Northern Wastes are an expanse of ice and bitter cold on Andoria. They appear in the Enterprise episode The Aenar, the first story to show the planet's surface.
In 2154 Enterprise learns that a Romulan drone ship is being flown by telepresence and that its pilot's brain patterns resemble those of the Aenar, a reclusive people long thought by other Andorians to be a legend. Archer and Shran beam down and travel through ice caverns, where Shran is hurt in a fall, before the Aenar take them to their hidden city.
There they meet Jhamel, whose brother Gareb has been abducted by the Romulans. Against her people's pacifist custom she goes back to Enterprise and uses a telepresence unit to reach him.