Rivière de la Grande Plaine Sud is a river located in the province of Quebec, Canada. It flows through a predominantly forested area, contributing to the region's natural beauty and biodiversity. The river is part of the larger watershed system, which plays a crucial role in local ecology. The river is known for its clear waters and scenic surroundings, making it a popular spot for outdoor activities such as fishing and kayaking. It also supports various wildlife species, providing a habitat for fish and other aquatic organisms, which are essential for maintaining the ecological balance in the area.