U.S. Waterways

Front

Explored by Lewis & Clark: Colorado, Rio Grande, Ohio River, Columbia

Back

Columbia

Front

Located in the southwest & explored by the Spanish

Back

Colorado River

Front

Creates a border between Mexico & U.S.

Back

Rio Grande

Front

Gateway to the west.

Back

Ohio River

Front

Provided the French & Spanish with routes to Mexico.

Back

Gulf of Mexico

Front

Creates a border between U.S. & Canada.

Back

St. Lawrence River

Front

Which Great Lake has a way to the Atlantic Ocean?

Back

Ontario

Front

Creates a border between the U.S. and Canada: Rio Grande, Gulf of Mexico, Columbia River, St. Lawrence River

Back

St. Lawrence River

Front

Which river historically produced about 30 million salmon annually?

Back

Columbia

Front

Which river has been carving the Grand Canyon in the last 6 million years?

Back

Colorado