The Colorado River flows from Northern Colorado all the way to Mexico
before the water filters into the Gulf of California.
Along the way the original water filters fast throughout the Colorado River
carving some of the most breathtaking views and caverns in America
including the Grand Canyon.
Another famous landmark in the US is the Hoover Dam
which was built in the river on the border of Arizona and Nevada.
Since the 1930's the dam has controlled how water filters through the area
to prevent floods and produce power for surrounding areas.