Colorado Plateau Region

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Across
  1. 2. The Colorado Plateau Region plays an important role in what else?
  2. 4. The Colorado Plateau Region plays an important role in what else?
  3. 6. The Navajo, Zuni Pueblos, Jicarilla Apache, and Acoma tribes lived in this area. Who is another tribe that lived here?
Down
  1. 1. The Colorado Plateau Region plays an important role in what?
  2. 3. The continental ___ is on the Colorado Plateau.
  3. 5. What group talked in code and helped win WWII?
  4. 7. What is used to create nuclear power in bombs?