Rio Lerma is a significant river in central Mexico, flowing through the states of Mexico, Guadalajara, and Veracruz. It originates from the Sierra de las Cruces mountains and travels approximately 400 kilometers before emptying into Lake Chapala, the largest lake in Mexico. The river plays a crucial role in the region's ecology and economy. The Lerma River basin supports agriculture and provides water for various communities along its banks. It is also home to diverse wildlife and ecosystems. However, the river faces environmental challenges, including pollution and water management issues, impacting its health and the surrounding areas.