[n] a state in west central United States in the Rocky Mountains
[n] a river in southwestern United States; rises in the Rocky Mountains of northern Colorado and flows southwest through Utah into Arizona (where it flows through the Grand Canyon) and then southward forming the border between California and Arizona and finally into Mexico where it empties into the Gulf of California; an important source of water in the southwestern United States
[n] a river in Texas; flows southeast into the Gulf of Mexico