A dark spot resembling a sea on Mars first spotted in the 19th century. It is the southwestern extension of the maze-like Noctis Labyrinthus system of deep valleys. It was formed by the uplifting of the Tharsis plateau.
| Identifier (URI) | Rank |
|---|---|
| dbkwik:resource/XTvsMXVVZ8PzdF1wMlOlCw== | 5.88129e-14 |