The Rio Grande is a major river in North America that forms part of the border between Texas and Mexico. It stretches approximately 1,896 miles, beginning in the Rocky Mountains of Colorado and flowing southward to the Gulf of Mexico. The river is vital for irrigation and water supply in the arid regions of Texas and northern Mexico. In Texas, the Rio Grande runs through several cities, including El Paso and Laredo. It serves as a crucial waterway for trade and transportation, as well as a natural habitat for various wildlife species. The river also plays a significant role in the cultural and economic exchanges between the two countries.