The Tamul River is a significant waterway located in the state of San Luis Potosí, Mexico. It is known for its stunning turquoise waters and scenic landscapes, making it a popular destination for eco-tourism and outdoor activities. The river flows into the Gallinas River, contributing to the formation of the Tamul Waterfall, which is one of the largest waterfalls in the region. The river is approximately 105 kilometers long and is part of the Panuco River basin. It serves as an important resource for local communities, providing water for agriculture and supporting diverse ecosystems. The Tamul River is also home to various species of fish and wildlife, making it a vital habitat in the area.