| Answer | Crossword Clue |
|---|---|
| ICECAPS | Martian topographical features |
| MESAS | Topographical features. |
| HILLS | Topographical features. |
| SEVENHILLS | Topographical features at Rome |
| infantile | (of topographical features) having undergone erosion to a slight extent only |
| CANALS | Martian features |
| ICECAPS | Martian features |
| DUNES | Martian features |
| CANALS | Martian or Venetian features |
| ANTENNAE | Features of a Martian costume |
