This body of water was known as the "Gateway to the West".

Lewis and Clark explored this river for Thomas Jefferson.

This body of water was an early exploration destination.

This River was discovered and explored by the Spanish.

Part of this river forms a border between Canada and New York.

The ___________________________ provided the French and Spanish with exploration routes to Mexico and other parts of the Americas.

What two rivers were used to transport farm and industrial products?

What river allowed access to the Great Lakes from the Atlantic Ocean?

The _______________________ river forms a natural border between Mexico and Texas.

____________________________ support interaction among regions, form borders, and create links to other areas.

What is the blue river?

The Missouri River is what color?

What is the purple river?

What color is the Columbia River

What body of water was a highway for explorers, settlers, and immigrants?

What is the river that is the color yellow?

Letter "J" represents what body of water?

Letter "L " represents what body of water?

Letter "K" represents what body of water?