Located in Steele County, Minnesota, Swan Lake is a picturesque reservoir with a primary purpose of recreation. Built in 1970 by the USDA NRCS, this Earth dam stands at 7 feet high and stretches 80 feet in length, offering a storage capacity of 423 acre-feet. The dam is situated on the Straight River and is regulated by the Minnesota Department of Natural Resources to ensure its safety and compliance with state regulations.

With a surface area of 85 acres and a drainage area of 4.06 square miles, Swan Lake provides a tranquil setting for outdoor enthusiasts to enjoy activities such as fishing, boating, and wildlife viewing. The dam is classified as having a low hazard potential and a fair condition assessment, with inspections conducted every 8 years to ensure its structural integrity. While its spillway type is uncontrolled, the reservoir's risk assessment is moderate, signaling the need for ongoing risk management measures to safeguard the surrounding community and environment.

Swan Lake serves as a valuable recreational resource within the Rock Island District and is frequented by visitors seeking a peaceful retreat amidst the natural beauty of Minnesota. As climate change continues to impact water resources, the maintenance and management of dams like Swan Lake are crucial in preserving water quality, supporting biodiversity, and mitigating the effects of extreme weather events. With its scenic charm and ecological significance, Swan Lake remains a beloved destination for water resource and climate enthusiasts alike.