The Rio Grande
- The Rio Grande is 1,896-mile long, the fifth longest river in the United States
- The Rio Grande's watershed encompasses 335,000 square miles. It drains more than 40,000 square miles in Texas alone.
- A 1,250 mile segment of the river forms the international boundary between Mexico and the United States.
- The Rio Grande begins in the Colorado mountains, courses through New Mexico, forms the border between Texas and Mexico, and flows into the Gulf of Mexico.