The Sleepy Eye River is a small waterway located in southern Minnesota, flowing through Brown County. It is a tributary of the larger Minnesota River, contributing to the region's hydrology and ecosystem. The river is approximately 30 miles long and is known for its gentle flow and scenic surroundings. The river's name is derived from the nearby town of Sleepy Eye, which was named after a local Native American chief. The Sleepy Eye River supports various wildlife and recreational activities, such as fishing and kayaking, making it a valuable natural resource for the community.