United States Water Features: USI 2.c

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Across
  1. 3. River explored by the Spanish; carved the Grand Canyon
  2. 5. St. _________ connects the Great Lakes to the Atlantic Ocean.
  3. 6. Rio _______ Forms the US border with Mexico
  4. 8. Flows north to south into the Gulf of Mexico; used to transport farm and industrial products
  5. 11. River explored by Lewis and Clark; flows into the Pacific Ocean
Down
  1. 1. The "gateway" to the west and a tributary of the Mississippi River
  2. 2. _______ port cities grew in the Midwest along the Great Lakes
  3. 4. Served as the highway for explorers, early settlers, and later immigrants
  4. 7. Used to transport farm and industrial products; longest river in North America
  5. 9. An early exploration destination; largest ocean in the world
  6. 10. _______ of Mexico provided the French and Spanish with exploration routes to Mexico and other parts of America