What is the catchment area of the Colorado river?

The catchment area of the Colorado River, also known as its watershed, covers approximately 246,000 square miles (637,000 square kilometers). It spans parts of seven U.S. states—Colorado, Utah, Wyoming, New Mexico, Arizona, Nevada, and California—as well as a portion of Mexico. The basin includes diverse landscapes, from mountains to deserts, and supports various ecosystems and communities. The river is crucial for water supply, agriculture, and recreation in the region.