Across
- 3. dune: a hill formed by wind blowing and depositing sand.
- 5. a low area between mountains or hills where streams and rivers often flow.
Down
- 1. a high, uplifted area with steep slopes.
- 2. an area of raised land that is lower and more rounded on top than a mountain.
- 4. an extensive area of level, mostly tree-less, land, often covered by rich soil and tall grasses.