| Answer | Crossword Clue |
|---|---|
| SAND | Composition of dunes |
| WHITESANDS | Southwestern site of gypsum dunes |
| CORALPINK | Color of some sand dunes in Utah |
| erg | a Saharan area of shifting sand dunes |
| areg | ERG, a Saharan area of shifting sand dunes |
| SAHARA | 3,500,000 square miles of plateaus, lowlands and dunes. |
| duneland | tract of land dominated by sand dunes, often bordering on a beach |
