Across
- 3. Intrusive igneous rock formations that have had softer rock ¨caps¨ eroded away
- 4. Deep gouges in the earth's crust formed by erosion
- 6. Cavities in the ground
- 7. Long, narrow, deep inlet with steep sides on three sides
- 8. Areas of high elevation with steeper sides than a hill
Down
- 1. Areas where magma reaches the earth's surface
- 2. Isolated rock columns created by erosion by waves
- 5. hollow space underground