Across
- 3. A deep, narrow valley with steep sides, often with a river flowing through it.
- 4. Lush dense natural habitat, often found in tropical climates.
- 6. Protected area for conservation and recreation.
- 7. A large natural elevation of the earth's surface rising abruptly from the surrounding level.
Down
- 1. A natural feature where water flows over a vertical drop in the land.
- 2. A vent in the Earth's crust that allows molten rock and gases to escape.
- 5. Mass of ice, often found in mountainous regions, slowly moving downhill.