The Rio Grande (image) Commission for Environmental Cooperation Share Print E-Mail Caption You're looking at the US side of the river from the town of Boquillas del Carmen, Coahuila, Mexico. The river stretches along the US-Mexico border through the Big Bend-Río Bravo region, a vast expanse of over 3 million acres that is home to many rare and endangered plants and animals. Credit Catherine Hallmich Usage Restrictions None Share Print E-Mail Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.