Across
- 6. strait the crossing from Asia to Alaska
- 7. moving in search of food and water
- 9. developed our knowledge in mathematics and astronomy
- 10. built roads across their empire
Down
- 1. built giant pyramidal mounds
- 2. known for their temple-pyramids
- 3. Giant stone heads
- 4. built huge burial and animal mounds
- 5. settle in river valleys
- 8. live on mesa tops, cliff sides, and canyons