a) Colorado River

The Colorado River, often referred to as the ‘American Nile,’ is crucial for its agricultural importance. Originating in the Rocky Mountains and flowing through seven U.S. and two Mexican states, it irrigates millions of acres of farmland and serves as a vital water source for over 40 million people. The river’s extensive system of dams and canals has transformed arid regions into some of the nation’s most productive agricultural lands, highlighting its significant role in the development and sustenance of the American Southwest’s economy and lifestyle.