Mare Australe

Here and there is a large sea, like that marked 'Mare Australe,' but otherwise the water and the land are strangely intermingled.

We veered south, toward the Mare Australe, and followed the edge of the desert.

Off to the southeast, just at the edge of the Mare Australe, was a valley—the first irregularity I'd seen on Mars except the cliffs that bounded Xanthus and Thyle II.

We circled the place; the canal went out into the Mare Australe, and there, glittering in the south, was the melting polar ice-cap!

MARINUS.—A ring-plain on the N.E. side of the Mare Australe, between Furnerius and the limb.