Across
- 3. height above sea level
- 5. half circle from the North to South pole
- 6. imaginary line that circles Earth
- 9. distance in degrees east or west
- 11. map that shows surface features
- 13. each bit of digital image
- 14. every 5th contour line
- 16. distance in degrees north and south
Down
- 1. high elevation, low relief
- 2. one half of earth's surface
- 4. navigation system that uses satellite signals
- 7. connecting points of equal elevation
- 8. landform with high elevation and high relief
- 10. system of computer hardware and software used to produce interactive maps
- 12. flat/gently rolling land with low relief
- 15. difference between highest and lowest elevation