Río San Pedro is a river located in the region of Mendoza, Argentina. It flows through the Andes Mountains and is known for its clear waters and scenic landscapes. The river is a popular destination for outdoor activities such as fishing, kayaking, and hiking along its banks. The Río San Pedro is part of the Mendoza River basin and contributes to the region's irrigation system. Its waters support local agriculture, particularly vineyards and fruit orchards. The river also plays a role in the ecosystem, providing habitat for various species of fish and wildlife.