| A | B |
|---|
| ATLANTIC OCEAN | THE HIGHWAY FOR EARLY EXPLORERS, SETTLERS AND IMMIGRANTS |
| OHIO RIVER | GATEWAY TO THE WEST |
| GREAT LAKES | INLAND PORT CITIES GREW ALONG THESE LAKES |
| MISSISSIPPI AND MISSOURI RIVERS | TRANSPORTATION ARTERIES FOR FARM AND INDUSTRIAL PRODUCTS |
| COLORADO RIVER | RIVER EXPLORED BY THE SPANISH |
| COLUMBIA RIVER | RIVER EXPLORED BY LEWIS AND CLARKE |
| RIO GRANDE | RIVER FORMS THE BORDER WITH MEXICO |
| GULF OF MEXICO | FRENCH AND SPANISH CROSSED THIS BODY OF WATER TO EXPLORE MEXICO AND OTHER PARTS OF AMERICA |
| ST. LAWRENCE RIVER | FORMS PART OF THE NORTHEASTERN BORDER WITH CANADA AND CONNECTS THE GREAT LAKES TO THE ATLANTIC OCEAN |
 | Atlantic Ocean - Map |
 | Colorado River - Map |
 | Columbia River - Map |
 | Great Lakes - Map |
 | Mississippi River - Map |
 | Missouri River - Map |
 | Ohio River - Map |
 | Pacific Ocean - Map |
 | Rio Grande River - Map |
 | St. Lawrence River - Map |
